I kept waiting to see where/why The CCN was wrong. Guess the title is click bait. You got me. 😂 I've watched many of his videos and I've heard him talk specifically about the different schedules in the manual and the majority of people fit severe service, which 10k changes aren't. He's described your precise driving style as one that meets the long interval option. Great job with getting an oil analysis that proves exactly this.

I did a lot of highway driving in my 96 legacy. So I tested the oil with amsoil once or twice. Then after that I would go 25,000 miles between oil changes. At 360,000 miles the wheel wells in the back rusted out such that the shock towers no longer supported the vehicle. So the car rusted out before the engine gave up. In fact, I never had any real issues with that engine. It ran wonderfully on the day I drove it to the junk yard. But I babied that car. 65mph was my limit usually. And it was a stick shift.

It’s the filter that makes 10K possible. Needs to be made so it doesn’t break down during that length of time. Almost any synthetic will do 10K with a good filter and normal driving conditions (non-exclusive city, non-regular towing, etc). I’ve run Walmart oil for 10K with their 10K rated filter and Blackstone came back fine.

Great job. Thanks for taking the time and sharing the information

An extra $70 oil change per year is cheap insurance.

I think the biggest problem with extended oil changes is that a lot of car owners think that means you don't have to lift up the hood between oil changes. Of course nothing could be further from the truth. A lot of modern engines naturally consume significant amounts of oil because they were designed with looser fitting piston rings to reduce friction and save gas. Your Corolla may not consume much oil, but a lot of cars would be almost bone dry after 10,000 miles without periodically topping off the oil.

I had an oil analysis done on our 2009 RAV4 (also with the 2.5 liter AR-FE engine) at it's last oil change and the results were excellent. I think wear metals were even lower than yours but our RAV4 only has 70,000 miles on it and I do change the oil every 5k. However, I use the Fram Ultra synthetic oil filter which is rated at 20,000 miles. So I change the filter every other oil change at 10k. That was the primary reason I did the analysis. I wanted to see if the filter was still doing it's job. No problem. The insolubles in mine were the same as yours at 0.2%. I use Super Tech 0W-20. No reason to pay more for a more expensive oil. I'm retired but we still drive mostly highway miles. We never idle the engine more than a minute or two before putting it in gear just to get the ATF flowing in the transmission before starting off per The Car Care Nut.

Thank you for posting this!

I did 10k oil changes on my 2013 Sentra and the motor was spotless however my piston rings were clogged at 170k miles and engine was burnin about a quart or maybe a little more between oil changes. I used a variety of oils , mainly mobile 1 and valvoline. I started sticking to 5k oil changes hoping I don’t have that happen again

Agree with you 100%. I have a ‘13 civic with 335k miles using same oil with 8-10k mile oil changes. Uses little to no oil.

Carcarenut is not wrong. He told you the common statistics, not unicorn cases that you or some car lovers do. Yes, normal usages without many short trips, cold starts, we can easily do 10-20k miles per oil change. AMD only said that many of us are not eligible to be considered as normal usages and can do 10k miles intervals. I also do 15k miles oil change interval and my Sienna at 230k miles does not consume any oil. However, I live in the south and always drive at least 20 minutes each trip. Unfortunately, the Blackstone test does not show exactly what happened in the piston rings or VVTi sprocket that often get clogged and gunked up.

I agree. I had my oil analyzed after 10K in my 2012 Corolla and Blackstone Labs told me pretty much exactly the same thing as they told you. I am now changing every 5K because my friend is a tech at Toyota and told me that all the techs at the dealership change their oil every 5K as a precaution. Oil is cheap, engines are not.

He specifically says the oil tests won’t show it because there’s a small amount that stays in the engine after an oil change. He also said when you’re only driving on highway only and using good oil it could be fine doing 10k oil changes. He just doesn’t recommend it.

Here's the thing with me, I drive very little (I'm mostly housebound), anywhere from only a few hundred miles a year to maybe the odd road trip, maybe 2 to 3000 miles in between changes, in other words, really low miles. My thing is I have only changed the oil closer to once every two years (or there abouts). Is that high risk? 2020 Corolla LE.

My x drove over 40k highway miles for decades, Toyota Camrys, I always personally changed the oil myself at the recommended intervals and have never seen a problem. I still change her oil, 0-16, at 10k and I expect that everything will be ok unless there is a mechanical problem from the factory.

does your corolla consume any oil because of your highway driving within that 10,000 mile interval?

About 27 years ago, Mobil 1 was the best of the best synthetic. It's funny to see that they have really slipped somehow. I lived how my car ran on it back then tho! I stopped using it when I traded in that car because synthetic oil got to where I needed to sell my left nut and rent out my right one to afford it. Thinking I want to go back to it in my current car tho.

I thought every 5 thousand miles oil change ?

The visual analysis was useful, but this is more definitive. 10K in a toyota with Mobil 1 and lots of highway seems doable. However, I would not do that in a turbocharged or GDI motor.

What kind of gas brand do you use? Bp?

My Chevy Sonic 1.8 at 260,000 has an oil cooler. Does yours have one?

On both of my Lexus i do 10k intervals. For peace of mind I use the M1 EP oil (rated for 20k) and the M1 EP filter. More than enough additives to 100% last for 10k. That’s my happy medium.

Good video. I think it depends on a few factors...the type of engine, the type of commute, the type of oil, and checking the oil level along the way. Obviously you’re doing easy highway mileage, and you know your car. I think THIS is an ok criteria for doing the 10k mile oil changes, but it’s not for everyone.

The problem was sludge getting behind the oil ring and pushing it into the wall, nothing to do with oil breakdown.

A sweet guy, interesting. Well done not using additives, that's how people screw with the viscosity index of their oils and end up wrecking bearings.

Yea , youre alright …. 10,000Mi(16,000Km) is actually the recommended intervals for Toyotas in the EU/Asia (they could have increased it since i checked)…. I do 10,000 mi or 1 yr on sythetics on my Frontier and Pathfinder. 😁….

What is the best oil is Penzoil better

It is not the miles but the number of hours (+ "work done") on the engine. Hwy miles is less "work" for the engine, obviously. May be the cars should come with an hour meter, too - just like tractors.

Do u change it when the maintenance light comes on? What mileage does it turn on?

Great info. I use the Mobil 1 0-20 in my Rav4 and have always changed it at 5K. Based on this info, I won’t worry too much about going beyond 5K between oil changes.

LOL my 2018 forester goes 10k miles without oil changes and is now at 142000 miles and the engine is still perfect according to subaru. The oil is full synthetic 0w-20 which can go well over 12k miles.

Thanks for sharing this info and I agree with you. I had a 1998 Camry that I sold two years ago with 351k miles. At 200k miles I began doing 6-7k oil change intervals with conventional oil and had Blackstone test the oil. They recommended that I continue this schedule and I did until I sold the car at 351k miles. I still see the car from time to time so it's still alive. Wife and I purchased a 2021 Corolla XSE two years ago and have done and will continue to do 10k oil changes with 0w16 Toyota oil(Mobil 1). I really like CarCareNut but I don't totally agree with this oil change recommendation. But that's OK, I still respect his opinion. :)

Hey man I was just curious how you got so smart with cars man. I really want to start to work on my car but I’m just scared of messing something up.

2010 Honda Civic using Mobil 1 Synthetic and Fram 10K filter. Change oil every 10K miles and I have 150,000 miles now, no oil burn, no leaks. Also own 2013 Toyota Highlander same oil, etc and 113,000 miles. No oil burn, no issues. Minimum 10K Oil Changes has been fine for me.

10,000 highway miles is the same as 1,000 stop and go city miles. Most people, do not drive, like you do. But, I'm sure, you do some city driving. Try using Super Tech full synthetic motor oil. It is American Petroleum Institute Certified. It meets the newest GF-6A standard. It costs a lot less money than what you pay for Mobil 1. I have been using Super Tech motor oil, for decades, and have had no engine problems. My drives, are a lot shorter. So, I change my oil/filter at 5,000 miles. This can help to prevent excessive oil from burning in your engine.

how about cars with short trips/commute....go by time or mileage? (car gets to operating temperate every time it is used)

Just checked my 19" camry at 7k. Oil still looking good. Still light color. I will change at 10k though

right on!

Can you do the test at 5,000mi intervals. 👍

Great experiment, and very enlightening; It should dampen all the "Fake stadium managers"

I run super tech oil check out the specs .. 19 bucks for 5 quarts full synthetic I change it every 5 to 6000 miles in all of my vehicles. I have a 2015 Nissan frontier with 100,000 miles. I have a 2015 Honda fit that I use for commuting with 80,000 miles I have a winter beater 2003 Subaru legacy with 195,000 miles you really should check out super tech which is Walmart brand of oil it’s basically mobile one re-branded. I also use super tech oil filters and all of my equipment, including my riding lawnmowers in super tech. Oil filters are basically wixs filters.

2005 Honda Accord 340,000 miles chang oil every 10,000 since new mobile 1 5w20 never a problem

Thank you very much dear Enthusiasts Garage for shedding light on this highly controversial topic. Yes, that Nut is wrong and so is Scotty. Just have to say that no matter the change interval, oil should be checked at every fuel stop.

Here's how to determine oil change intervals. First check the owners manual (ex. every 10000 miles). Next check EPA fuel economy ( highway 30 mpg.) find fuel needed in "ideal conditions" to reach 10000 miles. (10000/30=333 gallons) City economy @20 mpg gets 6700 miles. To hell with mileage, just change oil for every 333 gallons of fuel burned.

I have been doing 10,000 mile oil changes on my 2011 Corolla and am at currently at 360,000 miles with no oil usage

I feel like people are still going to try to convince you that 10,000 miles is bad. Clearly your data is here and it’s clear what your driving habit is highway driving. So if you don’t do mostly highway and a lot of city driving just change your oil earlier it’s simple idk why this has to be so hard. Wich category do you fit in mostly highway or mostly city stop and go, and make a decision their. Obviously their other factors like climate but it’s not that hard.

Impessive results, still fact deniers will change oil at half that mileage, wasting money and resources. One would really have to neglect oil changes to due damage. I can only remember one instance when a coworker did not change oil in 75000 miles, of course that was the end of the engine.

"this proves once and for all that 10,000 mile oil changes can safely be done..." Sure. I don't think anybody would debate that it CAN be done. That's not the debate. The debate in the case of 5k vs. 10k oil changes is that the engine will last much longer with 5k mile oil changes, which I agree with. and that debate, for some reason, is not done yet. I was taught the 3k/3month conventional 5k/6month synthetic rule of thumb many many years ago and I'm thankful for it, as it has paid off. For the record, I'm totally ok with people doing extended interval oil changes because that keeps demand for oil from spiraling out of control along with the price. 😉

Thanks

So 10k synthetic oil changes are safe. 👍

The Car Care Nut videos I have seen recommend owners to change oil at half of what the manufacturer says.

I use Shaffers supreme 9000 change 5-6,000.

Good numbers and it works well for your car. It really depends on the type of driving, short trips, start stop system, climate, lifetime of oil in the sump, oil grade (not brand), etc. etc. people think the magic service mileage number in the booklet is sacred. Old oil is nasty stuff and please wear gloves, you don't want that old oil on your skin, it will get in your blood stream and the stuff is carcinogenic.

Turbo engines never go past 5-6k mile mark between oil changes.

It's a clunker, like a fridge. Just change the oil out every 20,000 or so, the ECU will go before the engine.

It will work, but it would be a true test if you do an engine tear-down, this is the only way to validate your results. Not saying the test lie but in a scientific methodology, you take the test results and validate the results. Even a quick with a borescope may do the trick.

Oil was dark but lab results said oil was still good. Is oil color any form of an indicator?

In my opinion, I would not consider this a scientific test-it has no controls, does not eliminate confounding variables, does not control for selection bias, and has a sample size of 1; it does not look different engines, different years, different types driving conditions, different oils, etc. It only looks at a very specific uncontrolled single case. The only thing that can be claimed from this video is: in the case of this specific car, under these specific driving conditions, Blackstone labs tested the oil at 130,000 miles after 6 previous 10K mil oil changes, and Blackstone believed the oil was still good. Given the lack of controls in this video and hte small sample size, I don't think you can extrapolate the results to other makes, models, years, driving habits, etc., nor conclude the results here are relevant to how long a "10K mile oil change engine" will last vs. a "5K mile oil change engine" on average (which was the main point of the Car Care Nut video where he gave his personal opinion). To get a good reading on the issue, you'd have to spend 100's if not millions of dollars to do a large scale study over time. I propose we'll never know the truth on the 10k vs 5K mile oil change controversy.

Oil control rings will get damaged. Just change it at 5000.

People have an emotional reaction to oil change intervals rather than one based in experience or fact

Great video with proof. My friend does 10k oci and his car is over 200k and still running strong. I do the same 10k oci but my car has much lower mile.

Your average driving is a lot better than the average driving that most people do, short trips to the supermarket, idling in rush-hour traffic, etc. When you give a blanket statement of 10k miles on oil and don't tell your customers that you should do a 5-7500 interval depending on driving habits, instead just saying "10k suits most people." This is ignoring how most old people drive, how most kids will drive, whether or not you live in an overpopulated area with heavy traffic, if its hilly or extensively cold, have a lead foot, tow, offroad, even just drive on dirt roads per toyotas own q/a, or a combination of them. Thats why you see the teardowns and problems with 10k intervals that car care nut sees, because they sell the 10k interval, and don't entirely give the full story unless you look at the fine print. Highway miles long trips some oils make it to 25k miles, but those are people who drive extremely long trips and have low heat cycles. Unless you are getting the blackstone report, I don't believe you should EVER push to 10k even if the manufacturer recommends, as not only do they not know your driving habits, you don't know whats happening with your oil.

10k miles is totally fine if you do it in few months. If it takes you 1 year to get to 10k miles then the oil will break down. I have rental car fleet and used to change the oil at 6k miles, then upped to 7.5k Now I’m changing the oil at 8-9k miles. When I get past 7.5k I start to pay attention the visual appearance of the oil on the dipstick. If it starts to look thick then it’s done, also some of my cars start to burn the oil if it goes over 8-9k miles. 3-5k oil changes for full synthetic oils Is waste of money

Try Valvoline it will cut your iron and Aluminum. Go 10k or less. Nice car.

The engine oil grade depends on the climate one lives in ... is an argument I hear sometimes. The thing is that, though 0-20 and 0-16 is not recommended for climate above 70 degrees or so, the engine is running at the same temp. by the cooling system keeping it at operating ranges. The only time it really matters is in the winter for starting. If anything, i'd say 0-30 or 5-30 is probably a good bet on best grade for most people. But, I could be wrong.

You have a port injection , normally aspirated, and low output. You also dont do any “spirited driving”. And you do highway driving and letting it go farther than ten miles. This means nothing for enthusiast types with a DI turbocharged sports type car. We need that analysis. Plus this is a Toyota which is detuned for efficiency and longevity. BMW DI turbocharged engine is what people are curious about

In Sweden, the oil change interval was always 15000km or exactly 9321 miles. So why the FUCK doesn't our engines blow up all the time?

I did 10k oil change intervals on an accord v6 it ran smooth and no issues easily went over 100k miles with very little maintenance

Yes, but you run your car 80% in highway trips... I run 80% in City, with lots of short trips. I can't follow your advice. 6 - 7k for me is long enough.

Math correction.You went 10,000 miles and the compared average was 7400. You went 35% (not 25%) over the compared average. Even better news!

A very very small percentage of people qualify for highway driving conditions. Those are almost entirely reserved for long travel fleet vehicles. I own a quick lube and have changed the oil in over 150k+ vehicles over the last 20 years.... I can tell you with zero doubt that spending more money on an expensive or specialized oil and filter is a total waste if you keep your conventional/blends changed every 3000 miles and synthetics every 5000 miles. That really is the secret to making an engine last. Expensive filters/oils, etc and ESPECIALLY ADDITIVES are all a waste of money. The customers of mine that have used me to service their cars from the start, and keep their service on time with those recommendations, rarely if ever have any major engine issues. We service countless vehicles from those customers with over 300k+ miles that still run like a champ. The customers of mine that are sporadic with their maintenance, or decide to increase their change intervals by around 2k+ mileage over what we recommend, are the vehicles that almost always are leaking by 150k miles... and rarely do we service any of those vehicles much beyond that mileage as they simply do not last much longer than that. There are obviously random exceptions to that rule, but they are few and far between. I use Havoline oil at my shop and Prime Guard filters, btw. The entire oil and auto industry in the last 20 years has poured so much money into misleading advertising that most people will buy into anything they hear on a video or read on a website. It's all snake oil... keep your oil changes on the schedule that I mentioned above and you'll most likely never have to worry about your engine for the life of the vehicle. As long as you're using a name brand oil and filter, there is absolutely nothing to worry about. Everyone swears by a brand of oil and filter that someone else despises for one reason or another. I hear it almost daily from customers... "I only ever use this or that, it's the best there is... I don't use this or that because I had a problem with it." ... and the very next customer says the exact opposite. The truth of the matter, ALL NAME BRAND OIL AND FILTERS GET THE JOB DONE NEARLY IDENTICAL TO EACH OTHER WITH THE CORRECT CHANGE INTERVALS.

Ill stick with Car care nut for sure. No way I’d EVER go 10K. You might be able to go 10K if you drive like this guy, but I do believe you will be running into oil consumption when it gets high miles. WAY WAY WAY better chance of that not happening if you just change at 5K. Is everybody that broke or that lazy that they need to go 10K or longer. Black stone say that oil can go longer, fine. That oil looked really dirty. I’ll take Freah Clean oil, thanks.

You had more Al (aluminum) and Fe (iron) ppm than the universal averages i.e. worse than average. Not something to brag about. I certainly wouldn't disparage Car Care Nut.

The oil test does not prove whether a car is burning oil.

Castrol 0w20 should be a group 4.

The issue is, the VVTI gears need clean oil to work properly. Even if you drain all the oil, some oil will still be inside the engine. The Blackstone lab cannot check the oil condition inside the gears itself. Thats because that oil inside the gears rarely gets drained, even when the engine oil is drained. By replacing the oil early, you are basically diluting the dirty oil inside the VVTI gears, keeping them functioning longer. If you google this engine, the 1ZR-FE, it is notorious for VVTI rattle on cold start up. I would not be surprised if your car rattles upon a cold start.

If you want to keep your car up to 300k miles change the oil every 5k PERIOD

Blackstone is worthless though. Seen many get random results. I forget how they tagged them etc, but they had proof called them up and apparently they didn't have an answer. I've seen this from more than one person.

The test cost $25. Let say an oil change is $85 if done in a shop. Change oil a little more often and cut the test out.

If you're going to trade your car in by all means do 10K oil changes. It's just the next guy who buys your neglected car that pays the price.

People this is really a thing? Conventional oil is not that good at 10,000 miles. It starts to break down after about 1500 miles. So use your brain and don't go 10,000 miles without a oil change. It's so easy to do and just cover yourself. Everybody wants to act like 10,000 miles is good no it's not. Unless have to get expensive synthetic or Maybe a synthetic blend(and 10,000 miles oil filter) to go that long. And you're going to tell a car mechanic that is wrong after he shows the proof on his video from inside the engine? Man what a joke. I guess you saying the owner lied then. And you got 130,000 miles on that engine and the one he had in his show and had over 180,000 miles miles on it to begin with. Go look how thick and black your oil is at 10,000 miles and you're going to act like that's okay what a joke. Laughable

I don’t believe it’s worth the wear and tear on ur engine

Oil gotto changed every 6 k miles ( 10k km) or before. No exceptions. It is European standard

It doesn't prove anything, to prove your point pull the engine out and tear it apart and look at the piston rings and for tarnish and sludge. I think it is foolish to have 10000-mile oil changes just to save a few dollars. I bought a 2021 corolla new with 7 miles on it and the dealer told me about the 10000-mile oil changes and I laughed he tried to convince me, and I told him I would be changing it every 3-4k miles, and he said, "it's your money" and I said yes it is and I don't want to be here buying another car after 100,000 miles and my car is burning oil. Pistons and the rings aren't as tight in the cylinder as years past and oil is so much cheaper than having to replace a engine or having major work done. Your so-called analysis is hogwash, even in the owner's manual it states that if you are in heavy stop and go traffic or live in hilly or dusty environments you must change it at 5k miles. Don't listen to this yahoo unless you want to ruin your engine when it could make it to 200k miles and beyond.

wasting money, i go 20k always.