Cost of tuning up the old 70's Chevy V-8. 8-plugs $32, Cap and Rotor $40, Wire Set $40, Fuel Filter $12, Points $10, Air Filter $10, PCV $5 Labor to install parts and make minor adjustments on choke and carb 2 hours @ a give away rate of $50/hr so.... $100. That's about $240 bucks parts and labor... every 30,000 miles. So in 90k the "better car because it's older V-8" will cost $720 in basic maintenance. The *not a POS Nissan* (according to the Wizard) will be around $400 every hundred K or so to slap a set of plugs in it. Let's not forget the Nissan (or any modern car) will start when it is 30 below zero outside and idle. You don't have to pump the hell out of it to get it going everyday and drive it with two feet till it warms up, you won't smash your face into a steel dash board when you hit a tree from texting. The list goes on folks. Old cars suck and they were in no way cheaper to maintain dollar per mile.

All automotive engineers should have to work in a shop for a year before they're allowed to start designing cars.

Wanted a Tacoma for years. When I finally had the money, I did some research and comparison among mid sized pickups, Ranger, Colorado/Canyon, Ranger, Dakota and Tacoma. Hands down, the Frontier SV had the best bang for your bucks. Better than the Tacoma in many ways, bigger bed, stronger frame, faster, with more horsepower, and far less recall issues. Solid, great handling little piggy.

My 2007 Frontier ran 300,000+ miles before I replaced the plugs, wires, and coils. Got 400,000+ miles on the truck now and still going strong.

I’ve had my 2013 for a year now. Very happy with the truck. Always good to hear I made the right choice

I love doing my own repairs, saving money, best parts, done right. The satisfaction that comes with it. Just replaced all the coils and plugs, NGK and Motorcraft, on my 2000 Town Car 330,000 miles, full synthetic oil and filter, air filter, PCV Valve, cleaned and greased the battery, greased the suspension/12 zerk fittings, tire pressure, topped the fluids, washed and waxed. All for less than $300 bucks.

I had the 2.5L Frontier and now I have the 4.0L. Frontiers ROCK!

Nissan recommends the plugs change at 120k, I did mine at 107k, it made a difference in how it ran and idled. Now at 147k on my ‘15 Frontier, it’s still amazingly reliable

It's a Festivus Miracle!! The Car Wizard doing a Nissan Frontier video!! I have a 2015 Frontier SV with the 4.0 and it runs fantastic! No fluid leaks ever and no check engine lights ever! It just runs and runs. I highly recommend this vehicle!

Some people just don't understand the type of work we do as mechanics and think it'll take 20 minutes to do, done a handful of these engines and it may not be difficult but it does take time and time is money, people pay for expertise and tools

love my 16' frontier, 93k miles running strong shes got a long life ahead of her

Car Wizard called the 1994 Ford Ranger a POS. Made me glad I only have a 1993 Ranger.

$400 is a bargain compared to many of the exotic cars on which you can't access the spark plugs at all.

The D40 generation is very underrated because of the whole SMOD ISSUE which they fixed in 2011 I think it’s overshadowed obviously by the taco

Great video, thank you. I have a 2015 Nissan Frontier SV 4X4. 192,000 miles. Have not changed the plugs, still runs great. Have changed transmission fluid once and a tensioner and serpentine belt. Regular synthetic oil changes. Rear brakes have been changed. Front brakes are on the list to be changed. It has been a terrific truck. I flat out love it. I will drive it till it leaves me sitting in the road with nothing but a seat.

The 4 cyl version is a great truck as well and so easy to work on. With basic maintenance mine has 284k and I’m pretty happy with it.

Here in Australia they are called a d40 Nissan navara the best one here to buy is the v6 diesel love the channel mate all the best for the new year 👍🦘🇦🇺

I had purchased a 2008 Camry and after a few months if ownership I did change the spark plugs as it had 120K miles, alongside new tires that had increased my mileage by a about 2-3mpg. When buying a used car, changing some things even if not necessary can just be a peace of mind item to take care of.

I had a 90 ranger. That thing was great

Hey. I had a 1994 Ford Ranger. Not a POS That little pick up was amazing. The smaller 3.0 V6 and a 5 speed manual. It would get 29 MPG on the highway. I had to get rid of it in 2012 when I got an instant family. That truck would still be going if the brother in law and nephew hadn't wrecked it a few times.

A vehicle owner, especially for something of that size should not be complaining about a $400 maintenance cost.

Totally feeling this video. I have a 1972 Cadillac Eldorado with a carburetor and it is nearly impossible for me to find a reputable place that has the knowledge to "tune-up" these old cars. It is becoming a lost art, which is why I appreciate KZfaq enthusiasts that are willing to document and pass on the knowledge! Cheers!

My wife's 2006 Jeep Grand Cherokee with the Hemi. The switch to Iridium plugs cost $500 over 10 years ago. But, wow, what a step up in power. Efficiency went up too. We never had a check-engine light despite the plugs being totally worn out. We never had a single issue with that engine as a matter fact.

My last “tune up”, mainly replacing plugs/coils/ injectors was more than $400 doing it myself. Plus $200 in tools removing 2 broke plugs on a 4.6 3V.

Got love the wizards stories. Nothing is cheap anymore when it comes to maintenance.

David, normally I completely agree with everything you recommend. I politely disagree with your spark plug replacement suggestion. I recently replaced the plugs on my 2011 Ford Escape with the Duratec 2.5L 4-cyl. The factory plugs are iridium; the Ford Owners manual says the plugs need to be replaced at 100k miles. My Escape just turned 60k miles; it has had zero misfires... BUT the Duratec has aluminum heads. I have heard from friends and trusted mechanics that plugs can be a PITA to remove out of aluminum heads, and the longer they are in there the worse it can get. I did get all 4 plugs out without damaging the threads, but a couple of them were beginning to get more "fused". All the plugs were VERY worn, huge gaps. Since the replacement I have noticed quicker starts, improved throttle response and slightly better mileage. So I believe your spark plug replacement suggestion should depend on the vehicle; any model that has a history of excessive wear or problem plug removal should have the plugs replaced BEFORE the "money" light comes on.

Greetings from South Africa. I'm so glad the spark plug life was mentioned. I drive a Daihatsu Materia 2009 with a 1.5 vvti (looks kind of like Nissan Cube) still with the original plugs. As light on fuel as when we bought it new! Has done 340000km (212000 miles). As usual a realy professional review and production!!

I gladly paid $400 for a “tune up” on a 1996 olds cutlass supreme long time ago. Garage clearly laid out what they would do before I gave them the car. It was basically just a general service. New plugs, all new fluids/filters, serp belt (easiest belt to change ever) and I can’t remember what else…. Maybe greased suspension points or something. It’s honestly something I could have done myself in a weekend, but I didn’t have a garage, or even a jack/stands. It desperately needed it too. Ran great after that. 100% worth it. Gotta know what you would pay for convenience.

Started driving in 1962, First car was a 56 Ford Crown Vic. I spent my entire working life as an electronic technician, So I have seen the automobile evolve into what it is today. At 77 I consider myself pretty knowledgeable about how the present generation of automobiles function, the good and the bad. I detest the cookie-cutter style of the present generation. The glory days of styling were the late 50's to the early '70s. Not a fan of 4 cylinder turbos

I have a 2010 and I agree with everything except the fuel milage part. These things are terrible on gas. They get worse gas mileage than some full size trucks

I just traded in my 2009 Frontier with 249,998 miles on it. The only thing I ever did to it was regular maintenance and the cam sensors and oxygen sensors. Wizard the only thing I would recommend is the transmission cooler bypass as the pink slime transmission failure is catastrophic.

Thank you Wiiiizard for telling people what I have been trying to explain for years. The semi-annual "tune-up" was to check/replace points, wires, cap, rotor, and plugs, and to re-adjust the carburetor(for easy cold starts and to prevent running rich or lean) and timing for the season change. The PCM performs a tune-up within the first 30 seconds of every start up by compensating for temperature, altitude, and humidity(hot-rodders running fuel injection are constantly fiddling with their tunes to do this, because it is very difficult to engineer those adjustments to just happen as needed). Unless the computer is getting bunk data from a bad sensor, the engine's PCM will adjust the ignition, valve timing, and fuel/air mixture to make a good clean burn when cruising and further adjust on the fly, for better performance, when you put your foot into it.

Yes, spark plugs can last 10+ years in modern cars, but by that time the spark plugs and the cylinder head(s) will most likely be fused into one solid piece, making removal very difficult. And Mrs. Wizard's commenting on the "girthy shaft" was priceless! 🤣

I had a Chevy Blazer back in the 90's and I was getting ready to change the spark plugs on it until I looked down at them and saw how hard they were to get to. After a little research, I found out all you needed is an socket extension and you could get them out by going through the wheel wells on the sides of the car. Once you knew the trick, it wasn't hard at all.

These are excellent pickups. I bought a Frontier like this new in 2005 and proceeded to drive it for 177,000 miles. I never changed the spark plugs. Timing chains and tensioners...yes, at around 110,000 miles. I bought my next Frontier new in 2016 because they are such great vehicles.

Glad to hear your high praises on this truck. I have a 2012 in the bright blue metallic and I love it. The only thing I found different in your information is my 4.0 only gets 19 highway and 15 city(rated) I actually pull about 14mpg on a 50/50 mix of the 2. Thanks again for going over these simple and functional trucks!

Really enjoy your show. I agree to not replace spark plugs based on mileage, but I would change them when doing other maintenance work that requires removal of j take manifolds and the like anyway (such as a timing belt). Just like e timing belt replacement when you proactively change the other belts, water pump, timing belt tensioners, coolant, and the like….replace the plugs and check the coils / boots at the same time. Pay now or pay later.

"its not a POS 94 Ranger.." Really, wizard? I still see 90s Rangers every day. In the rust belt.

I'm "older" (56 next month) and I work on a lot of my own stuff. I can't say I'm unhappy that things like carbs and points and condensors and replacing spark plugs that got carboned up due to an over-rich mixture are things of the past. I'll take $10-$15 for an iridium spark plug that I only have to change every 100,000 miles over old-school Champions for $1.50 that I have to change every 5,000.

My wife and I recently purchased a 2019 Frontier Pro 4X (we bought it new in march 2020) we were able to get it on a good price due to the pandemic... dollar for dollar you get a lot more truck with the frontier than you would with a Tacoma.... I won't go into the long story but my wife and I compared them in order to get something similar to a pro 4X from Toyota you would have to get a TRD off road 4x4 and when we looked at those and comparison there was some things that the frontier had that the taco didn't have so in order to get everything the frontier had you would have to step up to the TRD Pro and the TRD Pro had some more things on it than the pro 4X didn't have but like for example a TRD off road 4x4 has drum rear brakes while the pro4x has discs in the back ...that's one example I can go on and on but we were able to get the truck brand new and this is a crew cab fully loaded with leather sunroof everything for $31,600 that was the purchase price plus fees and taxes the Tacoma TRD off road 4x4 that we were looking at that was kind of similar to the pro4x was $46,000... Toyota wouldn't budge on the price either so we're talking almost $15,000 difference between the two trucks and I'm sorry I don't care what anyone says the frontier is the best bargain out there has been for years and continues to be to this day very underrated truck 😎

definitely correct, they are not a toyota, they are so much better

That POS 1994 Ford Ranger crack may cost ya,,, lol... My buddy had a 93' Ranger SuperCab STX with the 4.0 V6 5 speed and that thing was a fantastic machine . Had just under 300000 miles before he sold it in 2005 and other than a couple clutches,, one slave cylinder,, and several thermostats for some reason, it gave ZERO trouble.. Still had the original starter and the air still worked..

I have a 2013 Nissan Frontier SV 4x4 , 4.0 V6 . Last year I decided at @109,000 miles I would show my grandson how to maintain a vehicle with that kind of mileage. Belts, hoses, etc. I also decided to change the spark plugs,,, believe me, I would gladly pay the $400.00 to do what we had to do. The iridium plugs we took out, I could barely find any difference to the new ones that we were putting back in. Anyway thanks for your information, I enjoyed watching it, and yes I will say that the Frontiers are quite comparable to the Tacos

These customer stories are totally why I still listen to car talk reruns from npr. You and hoovie should ask that production company if you guys can take it over

10:21 I'm not very old, but last car was a 2002, so when I bought a 2017 Nissan Rogue, several things surprised me. I didn't know that most cars don't have spark plug wires anymore (I think the way they do it now is better). I also couldn't believe there was no power steering fluid. It's fully electric. Again, I think that is an improvement. My anti-freeze is "Asian blue", not the green antifreeze that all my other cars have had. I was concerned about taking my car to a quick oil change place and them confusing the antifreeze with the wiper fluid, so I actually printed out a label and labeled it. It pays to read up on a car when you get a new one.

Love my 2019 frontier, small lift and 33 AT's gets your like 13 city when its warm out. have had zero issues, bought it with 7k and have 44k now, just getting broken in. Original brakes and rotors still completely smooth. I just change the oil and other fluids per the manual and use only OEM recommended products. these trucks are super reliable and perform very well, the simplicity compared to other modern trucks is great. Truthfully if given the option between a fully loaded Pro4x or a Fully loaded TRD Pro i'd take the frontier everytime. It''s just a shame used 2019's with 15k miles are going for 5-6 grand over 2019 MSRP when they were brand new. No longer a budget truck

Going to roll over 200,000 miles in my 2013 Nissan Frontier V-6 ,AT, 2WD soon. Been a great little truck. I had a 1997 Nissan pickup before that. Also a great little truck.

To me a tune up today would be basic maintenance like plugs wires, belts, hoses, filters, checking and replacing worn suspension items, tire rotation. Still LOTS of stuff to do on modern cars. Any time you pull into a shop it's a miracle if you get out of there for under $1000

I changed my spark plugs without removing the intake on my 06 frontier , has to use a tiny ratchets and lots of wobbles. Probably the same amount of time 😂

I have the 11 Frontier and 12 Xterra, I did the complete fluids, struts, shocks, pads, rotors ,front crash sensor, coil pack and plug replacement because I purchased both of them used. The passenger side plug replacement is frustrating but if you take your time it can be done. I will take mine to the dealer to have the valve covers replaced, PITA. Awesome content Mr.& MRS. Wizard . More please!

It's funny he mentioned the ranger. The 2.3l lima is like an anvil. Simple as an anvil too. Seen those with 200k+ miles more often than not.... Maybe having a taco disolve into iron oxide is the recommended method.

One thing i loved about my old 2.4L Grand Am. Easiest engine I've ever done spark plugs on. And plugs were still kinda cheap back then. 4 bolts to pop the cam cover off, and there are the plugs.

Gotta say that my 2006 Nissan Armada SE just turned 200K miles with just normal wear and tear items. I wouldn't look at the newer ones but "The Beast" or "The Farm Truck" has served me well.

I did the major maintenance on my 2007 Honda Accord V6 at 114,000 miles. This is what a tune up/major maintenance consists of today. NEW -timing belt -water pump and antifreeze -spark plugs -engine and cabin air filters -drain engine oil replace oil and filter -drain and replace transmission oil and filter -drain master brake and power steering reservoirs and refill Anyway the spark plugs looked so good I almost put them back in. It was difficult to near impossible to see any difference between the new ones vs old.

I have an Xterra Off Road I purchased new in '08. The Maintenace I perform on it is aimed at long term ownership. The "tune up" at 95k consisted of plugs, coils, cam & crank sensors along with the mentioned intake gaskets. All PVC lines replaced as they had solidified with age. All fluids get changed every spring: both axles, transfer case, power steering, brake fluid. Transmission gets drained with every engine oil change. The radiator changed every four years. Recently, the ac compressor blew a seal. While I was in there, it got a new compressor, condenser, all new ac lines and the third radiator, alternator, belt, pulley, tensioner, thermostat, all new coolant lines, including the ones that go to the heater core, all radiator/condenser mount bushings. When I change the engine oil filter, I put a wrench on the fitting it screws onto as I have seen it come loose. We bought a new Toyota 4Runner TRD Off road in '19 unfortunately, it spends most of it's time parked, as I like the Xterra more than it.

I have a 2014 Frontier. Other than changing out a bum alternator I have had no problems.

I am 70 years old and I can remember the days of the points and condenser distributor for an ignition system and a carburetor for the air and fuel delivery system. Back in those days about once a year the points, condenser and spark plugs had to be changed. Also the new points gap had to be adjusted and the engine timing adjusted using a timing light. Also at the Carburetor the engine idle speed could be adjusted and the idle air fuel mixture adjusted. All this was called a tuneup on these old cars. Today's cars have electronically controlled fuel injection and electronically controlled ignition systems with an ignition coil for each spark plug. Also all this equipment is controlled by a microprocessor computer system called the Electronic Engine Controller, which does all the adjustments. There are no user adjustments that can be made. It is now a situation that if the Electronic Engine Controller detects a problem the check engine warning light turns on.

I bought a 2022 Nissan Frontier. Very nice truck

I bought an 06 this year to tow a small RV. Other big problem is that the timing chain cuts through the tensioners in the early years, I have to get the whole timing chain done about $2k but after that it should be bulletproof. Also a $30 axle breather mod is recommended.

Makes me enjoy how easy it is to work on my 2007 Sierra 1500 classic with L33 5.3L. The wizard is right, 1999-2007 chevy/gmc trucks are really worth it

I've had a 4cyl 2wd frontier for almost 5 years & really like it. It's not very powerful but it's super reliable and cheap & easy to maintain. I read 115k is the service interval for plugs & coils & they're kind of a pain but not impossible to do. I have K&N air (no fancy intake tho) & cabin air filters that I check a couple times a year & clean/oil yearly or as needed. Change the fluids, check the alignment yearly & be nice to it & it's fine & cost much less than a Toyota.

Used to work at a car parts store, and I would turn away customer coming in to buy tune up parts for fuel injected cars they wants sparkplug, cables, ignition modules, O2 sensors and I just told em if the check engine light isn't they don't need to replace any parts on there car

Wizard, the interior reviews with your wife make me feel like I’m on an airplane receiving instructions of how to use the seat bottom as a flotation device.

Here in Norway it's call Nisssn Navara...it's biggest problem is rust...just between the cabin and the truck bed it use start too rust..and the frame breakes in two..

A $400 tuneup from the Wizard is a bargain compared to a Jiffy Lube that jacks up your vehicle from under the oil pan and torques the drain plug to 800 pounds. To people who think the book rate is just meant to drive the price up, I would say if you think you can do it faster yourself, have at it. Good luck. You're paying for a mechanic's skill and expertise. That mechanic is not just a dumb gorilla with a toolbox. If you think you can do it faster, better and cheaper, grab that service manual and tools yourself. Good luck.

"Engine Service" is the new Tune Up. Spark plugs are no joke now. I just serviced my daughter's 260K+ Nissan Frontier 3.3 V6. The 3.3 had to have intake removed for access to replace leaking valve cover gaskets and all the various hoses to intake had attached to it. A lot of people have the mentality that an engine service/tune up is cheap and until they find out otherwise.

I have 247K on my 2007 Nissan Frontier XE 4 banger at 17 years im only on my 3rd set of plugs(including the OG) with only one coil pack replaced. Amazing engineering.

The danger about changing plugs at 200,000 miles is that they might get fused to the head, then they have to be drilled out. Iridium plugs on a 2016-2017+ have to be replaced at 60,000 miles now.

Yeah cars have changed since 1985. The biggest one I see is coil packs. It allows the low voltage computer to control the spark.

I purchased a brand new 2013 frontier 4.0 4x4 6 speed manual and it was a very solid truck. Chirp every gear the few times a sped in it. Wasn't very interesting or would I buy another but it did its job and was the 1st new car I purchased

I've got a 2007 Frontier CC 4x4 Long Bed, It's been a great truck. The only thing I have had to replace was the Original Calsonic Radiator, to prevent any coolant contamination to the transmission in the event the tank seal broke. All in All It's a great riding and powerful truck.

It's not impossible to replace the spark plugs without taking the intake manifold of. I'd done it many times already it's kinda hard, but it's possible. Good video though!

technically in the ratings nissan frontiers are more reliable. the tacoma suffers more in myth and has toyota tax

Yes finally people released that tune up's don't anymore. Thank you, I'm tired of people asking for tune up on their +2005 vehicles

3.5L Fusion is the same. 2 Ford dealers quoted $585 and $660 just to replace the plugs. Parts were $75. I understand overhead but that's insane. Did the plugs myself in 2hrs.

You can do all six plugs without removing the intake. I’ve done it twice on my second gen. However, the front plug on the intake side is a duzy. It requires a few wobble socket extensions but is very doable.

I have a 16 King cab with the 2.5l with about 96k it’s definitely a solid engine idk if it’s as solid as the old Ka24 series but time will tell.

Bought my 2013 Nissan Frontier in 2014 with on 26,000 miles on it and in the ten years I owned it and had no problems till this year. Only 97,300 miles and had to change the catalytic converters, cam sensors, crankshaft sensor. I am not complaining just was one thing after another. I hauled a travel trailer to Florida and back twice, traveled to Duluth,Minnesota by way of Canada, traveled all over New England. Considering all this I think I have a good truck and had a friend buy one also and he also is happy with it. Thanks for the video and it was very informative and helpful.

Not all shops are the same.. My 2003 Escape needed plugs and a Firestone shop told me it was engine out job, and quoted me $1000, and I declined. They said I needed to tow it because they can't allow it to leave without getting fixed... I drove it in, I can drive it out... Took it across the street to a Pep Boys and it cost $300 because they had to remove intake manifold, not engine out.

Thank you for videos like this one. I work on junk too and I often refer my customers to your channel for explanations on repairs.

Sold my 2016 frontier sv4x4 great truck but you needed 5 lanes just to make a 2 point turn

I have a 2012 Nissan Frontier 4X4. 95xxx miles now, runs great, no issues. Good to know the minor fixes. Thanks for the informative videos ! Thank you Nissan for building a great quality product !

I got charged $150/labor 8 years ago to have the mechanic at my work to change the spark plugs (8 of them!) on my 98 Ford Ranger 2.5 l 4 cyl. I bought the parts and he installed them. After seeing what had to be done, I feel that I got off easy. Only 7 of the 8 spark plugs were accessible with the intake plenum on, that last one was only accessible with the plenum removed.

I would've thought a $400 "tune-up" would include cleaning and oiling the K&N air filter.

You do not have to remove the intake plenum to do all 6 plugs if you're careful with a steady hand on the VQ40DE. Seen it done without removing the plenum many, many times on these engines. Learn to do it without and it makes it so much cheaper and easier for everyone. As a Wizard I trust you might learn this in the future for more convenience.

I did a video about a tune up on one of these about 2 weeks ago. The right side coils can be accessed, but you have to dance to get it done. Since the boots are flexible, the right front coil and boot will come out and go back in. The bigger issue is they usually have oil leaking into the plug wells. Change plugs based on service intervals and vehicle use. Always also use the OEM style plugs. Running the plugs to 200k will load the coils unnecessarily and cost some mpg and performance since the PCM will be adapting for longer spark times, different timing needs and other issues worn plugs can cause. The manufacturers don't recommend service intervals to sell you plugs, you usually buy aftermarket, there is a reason for it. :)

Traded in my 11 frontier crew cab long bed SV in 2020 with 107k on it. Owned the truck for 9 years original owner. 4 pinion seals, 3 sets of brakes, 2 rear window regulators, 1 starter, 1 ABS wheel speed sensor hub, 1 e-brake kit. I changed the fluids every 30-40k and the rear differential fluid was black last time it was changed. Mechanic said rear differential is starting to go about $2,000 to fix. Transmission would occasionally downshift hard. Told mechanic to put new fluid in it and sold it. Seats were not that comfortable and if you have a newborn car seat it will take up so much room. Traded it for an 18 Silverado with a whining torque converter. Sometimes I wished I would have kept the frontier and put the money into it but I wanted a newer full size truck.

The exception to the “everything has COP ignition” is your typical LS/Vortec V8 which DOES still have spark plug wires.

$400 would have made me happy back when I had a 2005 F-150 with the 3-valve V-8. Several of the spark plugs broke off when they were doing the tune-up, which that engine is notorious for, and the cost quickly hit the $600+ mark.

My local southern California Ford dealership wants to charge me $767 to change the spark plugs in my 2004 Ford Expedition with a 4.6-liter engine. They told me that if a spark plug breaks during the removal the total can easily exceed $1,100 for parts and labor. I purchased 8 new platinum Motorcraft OEM plugs from a different Ford dealership for $35.84 and three hours of my labor and the job was done with no issues.

I have a Pathfinder 2010 same motor 4 L V6 you most definitely can remove the coils and spark plugs without taking off the intake manifold you need a couple wobble extensions and maybe a ratchet 10 mm takes about an hour and 20 minutes in my driveway but everything else you’re spot on

Just wait until the owner has to pay for a brand name, top tier set of tires...here's a hint: They aren't 100 bucks each installed. Love the Blue paint job.

I replace platinum spark plugs around 100K miles and feel the engine run better, especially at mid to high RPM. I have replaced upstream O2 sensors at 100K miles and see the MPG improve typically 2MPG initially and then settle in about 1 MPG after a few weeks. Not sure why or if it is worth it, but I have seen the same result on a few different cars.

My 08 Ridgeline has close to 150,000 miles with OE plugs. So far no issues.

Thats a real clean Fronty. Those headlights Are indeed aftermarket. Look like the ones avail from Z1 Offroad. Might also be Morrimoto. As to the plugs and coils, it IS possible to do the plugs and coils without removing the upper intake, but its a PITA. You need a flex joint and a whiskey. I would advise replacing plugs and coils at/before 100k to prevent the plugs seizing in the head. It is a possibility. I will NEVER understand why people say a Frontier isn't a Taco... The Frontier is Every bit as reliable. Toyota had a 10+ yr issue with dead frames, Nissan had a 5 or 6 year issue with radiators they were supplied with (and they aren't the only brand in the mid-late 2000s... Mercedes, BMW, GM, ...) Otherwise, drain and fill the trans pan every 40K (about 4qts ATF), change oil every 5k, Fluidfilm the underside every 2 years... it'll last forever. During the 2020 autoshow Nissan displayed a million mile Frontier. The ONLY thing the owner did was recommended maint.

Here in Germany we know this Car as Pathfinder. They often driven by Forester or Hunter. Mostly with the loud Diesel Engine that scare away any Animals. But over the last Years they disappering from the Streets. My Opinion on Sparkplugs Change is a little bit different from yours. I mean when the Sparksplugs are burn up slowly, the Engine Lose Power and you Demage your Catalytic Converter. New Sparkplugs Costs way less than New Catalytic Converterrs. Missfires are not always noticable. Especially when they are just very Light. By the way it increases the Relaiability on Long Trips. No one wish a Breakdown in the mid of nowhere just because a Grappy Sparkplugs. So i change my Sparkplugs when it is recommeded. NGK says thats the case around 40.000-50.000 Miles and they are right.

Thank you Wizard and Mrs. Love the Nissan Frontier, IMHO a much under-appreciated truck.

My 2011 Grand Caravan is still running great at 147K with original spark plugs. I'm going to take Wizards advice and wait till one goes bad and change them then.

FYI, those plugs can be changed with the manifold on. I did it on my 2013 Xterra (exactly the same engine and space). The less you have to remove the less of a chance for introducing a problem, that's how I looked at it.

I had a 2010 Ford Escape with the V6 and it was worse. The intake covered the entire engine. lol My mechanic quoted me $440. Definately teaches you to plan for it if you buy a vehcile with higher miles. Factor that into the price.