I've used ford motorcraft 5w20 synthetic blend in my dodge caliber (bought new in 07) sence my first oil change i now have 322000 miles. I change my oil every 4000 miles. I have never had to add oil between changes. I burn a little over 1/2 quart in 4000 mile. I use motorcraft in all my cars

Skip to 4:50 Less jibber jabber, more to the point.

I abandoned Amsoils extended oil change interval claim after sending a sample to blackstone labs where they notified me that the oil should have been changed a 4k and not 10k. The TBN had dropped like a rock.

This is clearly in favour of Amsoil. That being said, it is a good oil, albeit expensive. I have used synthetic blend and regular good quality oils in my vehicles over the years. I do my oil changes on a regular basis. I have 450,000 miles on my '82 F150; 410,000 miles on my '84 Crown Vic; 420,000 miles on my '93 Doge truck; 210,000 miles on my '96 Crown Vic at this point. None of the engines in any of my vehicles consume any more oil than they did from day one. My philosophy, is to use oils with the approved seal on the container and the appropriate classification for that engine.

After 13 years I just took the valve covers off my 2009 Ford 5.4 L for the first time ever. It had run Motorcraft semi synthetic for the first 8 years of its life followed by various other semi and full synthetics changed regularly since then. I could not believe it as the top of the engine looks like new, there was zero sludge, buildup or discolouration on the valve covers or various engine parts which are all still shiny silver and show zero wear. I had no idea an engine of that age could look that good after so many years just from proper maintenance so I’d say don’t stress to much about semi versus full synthetics, just keep it changed and run a quality brand.

Finally some one with some common sense, thanks for telling like it is there are so many shade tree people making videos that don't know what they are talking about!

I have been running amsoil in all my vehicles for more than a decade. Both gas and diesel. I change it by the hour meter, not the odometer. Every 100 hours. This works out to between 3300 - 3900 miles. I know the oil hasn’t broken down in that time. But I also want it to always be clean. At 150,000 miles, you look inside the valve cover and even a Diesel engine is so clean, it looks like it was just assembled and hasn’t even run yet. That gives me enough piece of mind it is worth the extra expense. Just my $.02

I'VE PUT FULL SYNTHETIC and change it once a year (which is 10k-12k for me). Engine runs perfectly on 4 of my cars that I sold when each hit 100,000 miles. One I sold to a friend and he is still doing the same thing changing the oil once a year. Car has run great for him over 200,000 miles with no issues.

Actually the best oil........ IS CLEAN OIL....

07 Honda Ridgeline 729,000 miles and never used synthetic. There is nothing wrong with semi synthetic oil. Castrol GTX Ultra Clean oil is a excellent semi synthetic oil.

Wow I just bought a synthetic blend yesterday. I wasn't feeling it! Glad I did the research. It's getting returned. Thank you!

I've always used synthetic blend oil for the last 20 years and I've never had a problem I've got 260,000 me doing good house brand oil which is made by Valvoline.... I really believe full synthetic oil is way Overkill and not necessary unless you live in Antarctica where it gets way below zero all the time ...... Most of the people I talked to use synthetic blend

In 1968 I began using a Synthetic oil called PolarStart made by CONOCO; I believe it was developed for use in the Arctic; since then I have used several different Synthetic Oils. I have lived in Minnesota since 1962.

I have used amzoil 15/40 diesel marine for 20 years in Chevrolet dually with 650 000 km run 15 to 20 thousand new filter at half mark and flush on each oil change and doesn't burn a drop my skid steers same works great

I've used Valvoline synthetic blend for hundreds of thousands miles in my service trucks for years without any problems ...NONE!

Have you and your company “Amsoil” know for a fact that a synthetic blend is only around ten percent? Have you done any tests to prove that synthetic blends are 10% or less of pure synthetic oil?

Manufactures are using any excuse to get the word "synthetic" on the label.

I make my own synthetic blend. I use half Mobil 1 full synthetic and half standard grade Mobil oil. It works great in my Volvo. Mixing some synthetic does help. It reduces oil consumption. Synthetic oils designed for longer oil change intervals have more detergents and acid buffers. The synthetic oils also cling better to friction surfaces and reduce heating. My car gained almost 8% better fuel economy.

I was a mechanic for over 35 years I tore down and rebuilt many many motors I used conventional valvoline my own and never had a sludge problem at all and ran the engines hard and above redline from time to time. Engines that had penzoil in them consistently were the ones when tore down you needed a puddy knife to start cleaning the oil galley. None of my personal engines ever had sludge and these motors were mostly old v8 from 327 up to 455 they lasted better than the new cars that have a check engine light that is constantly on from some Chinese sensor that went out causing the engine to flood and r7n like crap. This is my 2 cents lol.😊

Thank You! I've always been curious but now, since due for an oil change, I feel perfectly informed about synthetic blend motor oils. They'll never touch the crank of my '85 Vette. Now, I'm curious about Amsoil. l'm sure to find a KZfaq about it, and once again feel perfectly informed. Happy Holidays! John VB.

ive tryed both synthetic to me i like the regular oil synthetic you have to keep using lot of people dont no that i like valovline ive used it for 20 yrs and had no problem.

I only drive 2,000 in six months while using Valvoline synpower full synthetic and top of the line oil filter.

I used to think that synthetic oil wasn't from crude oil and was somehow made artificially. Once I learned that it is just a higher refined petroleum oil with more additives I started using full synthetic every time. I use Mobil 1 or Royal Purple.

I've found that Synthetic Blend Oils are really good for one thing...for transitioning your Cars Engine from Conventional Dino over to 100% Synthetic. Gives the time for gaskets and seals to adjust to more synthetic properties before you switch over to fully Synthetic Oil. I transitioned my 2010 Toyota Corolla over to Synthetic from Convention by using a high-quality 5W20 Synthetic Blend Oil, then I went over to a Full Synthetic 5W20...and eventually a 0W20 Synthetic. No Issues, No Leaks, No Problems to speak of. That's been my experience anyways. Great Fuel Economy!

Big diesel engines routinely run over 1,000000 miles on conventional 15W40 oils before needing to be rebuilt. Many well designed gasoline engines will run 250,000 on conventional motor oil, using good preventative maintenance. I've ran used oil analysis on my Detroit Series 60 motor, using 15W40 conventional oil and also with 10W30 semi-synthetic oil. The semi-synthetic oil allows for a longer drain interval, with minimal added cost. I now use a semi-synthetic 15W40 for the majority of the year, and 10W30 semi-synthetic for the Winter months. In my opinion and experience, semi-synthetic motor oils offer very good performance. For my operation, using a full synthetic in my semi truck is an unnecessary added expense. And I think the differences in engine wear between a quality conventional, or semi-synthetic, and a full synthetic oil is negligible at best.

Not dragging on the guy. Sure he's very informed in this field but notice that he is sponsored by amsoil. So just saying

I have 130,000 miles on my elantra. Used Pennzoil synthetic blend since the beginning. Pennzoil claims at least 40% synthetic.

Thank you. Finally an explanation that makes sense. Full for my performance cars, regular for my old non turbo Volvo.

my son has a f250 and has run Valvoline max life from day one and never had a problem and its at 320000 on it.

Hi. My motorcycle uses semi 10w40 oil. I have in a quart a mix of liqui moly, Motul and Wolf Belgium semi synthetic on excedent from previous bottles when changing oil. Can I use this tree brand mix with identical API and JASO specs? Thanks in advance.

Amsoil is a good product but over priced and over rated. Ive used it and after 5000 miles, it looked the same and my car drove the same as any other syn oil. It does do a great job on my gun. The slides stay wet for months. But my car started and ran quieter on QS Syn than it did on Amsoil. Ive used Valvoline, QS, Pennzoil, M1, Kendall, Castrol, Shell, Havoline, Amsoil, Royal Purple on dozens of cars since 1978 and have only had a problem with graphite oil back in the early 80's. Use OEM filters and change oil at manufacturer's rec viscosity and OCI and you'll get 300K out of any engine.

I will try the Amsoil 25k drain interval option with a K & N oil filter. But I will replace the aforementioned between 7.5 to 10k because if condensation concerns. Money is no object.

what do you think about the video on deboss garage channel... Claiming full synthetic oil cause sludge in a 5.0 engine.

Thanks, informative, authoritative, & reasonable explanation in layman' terms

I once thought synthetic oils I bought was most beneficial in my application until I started to understand the business side of selling oils. Mostly everything dealing with day-to-day use products that businesses sale take with a grain of salt if they have strong marketing ploys for their product since they can ultimately leave you with a false impression like I once had. It is ultimately up to us to change our oil more frequently if we are to receive the benefits of maintaining our engines and etc holding onto the value of the items we enjoy to use. If your application calls for synthetic oil you buy truly tested higher graded oils from educating yourself on the industry. If you just commute day-to-day and want to keep your vehicle for a "lifetime" use your budget based oils but change them often or it will eventually smudge up and upset you prematurely. If you like performance engines understand the budget required to upkeep your investment or weekend toy or luxury commute it will keep you a lot more satisfied with your options.

I have no interest in extending my change intervals. My truck has a GDI turbo charged engine and has some fuel oil dilution. Using a good low cost oil and doing oil changes every 5k or 6 months make much more sense. AMSOIL is ridiculously expensive.

I was running Castrol SynEdge until I found a test that showed how poorly it did. It isn't even a real synthetic. I switched to a real Synthetic with great lab results from several labs and I am pleased.

Straight amsoil 30, in my engines, change filter at 3-5K, enjoy. No issues, no concerns, ever. Enjoy.

so no coconut oil mix?

I read an article on this subject years ago that said when conventional oil is mixed with synthetic oil it contaminates the synthetic oil . Making it not synthetic but conventional . It makes sense.

All motor oil must meet the SAE/API standard and Vicosity Rating that is marked on the container regardless of whether it is a conventional - synthetic-blend or full-syntheric. Not all oils may meet the specific specs of a manufacturers typ of engin like GM who requires a GM-LL or DEXOS2 typ of oil.

Mobil still selling blend. Just bought one from Canadian Tire. Well, $20.79 for 4.4 litter. Called Mobil Super 2000 synthetic blend.

So what if you have a older car and you use conventional oil and top it off with synthetic does it have the potential of still cleaning too much of the deposits out to where you start getting oil leaks and loose compression

If the manufacturer recommends and uses synthetic blends (as many now do) and they consider it in compliance with their engineering for warranty purposes, then it is more than acceptable to use. The key is to change the oil in intervals to keep your engine's lifeblood clean, regardless if you use full or blended synthetics....

Anyone know of a chart or list where you can find what part of any given brand of a blend oil is in fact synthetic? In particular, Castrol 10-30 high-mileage .

Amazon 5 quart High Mileage Synthetic blend Oil = $17.99 which is only $1 more than their conventional oil. I don't know what premium price you are referring to? I do agree that it doesn't do any good to your engine due to the little percentage of the synthetic oil.

Does the brand of Synthetic oil really matter? I mean, all of the brands I see are certified on this, certified on that, blah blah blah. Although this is the case, the price between different brands can be substantial. Should I just get any synthetic and be on my way?

Nonsense. Match the specification of the product, the specifications of the production and the type of driving and you will have no problems. At this point in time, all conventional motors oils are synthetic blend to some degree, probably at least ten percent synthetic, simply because the carrier oils the additives come in is synthetic. I don't know what the industry standard for semisynthetic is but most people say, around 30 percent. I suspect semisynthetic is made by partially carrying the refining process for Group III synthetic but not completing it. There is, in general, no great price difference between dino (conventional), semisynthetic and low-end synthetic. Unless specifically stated on the label, assume that any synthetic is Group III. Group III qualifies as synthetic for one thing because the lighter components and the paraffins are refined out of the mineral base stock and the molecules are altered in their structure and also because it meets the technical specification for engines requiring synthetic oil. I would suggest, though, to treat Group III synthetic as glorified conventional for oil change purposes. All you need to do is adjust your oil change interval accordingly. If you do your own oil changes and your vehicle is difficult to work on, then use an oil that allows a longer oil change interval. My self, I drive a vehicle with a 1990s era bimetal four cylinder engine. Bimetal means cast iron block, alloy head. I use semisynthetic and have an oil change interval of 2800 miles. Why? Conventional was original in this engine and I want to keep the rear seal good, and I drive all short strips. Short trips constitutes severe duty. The idea that synthetic oil might damage seals in an engine originally using conventional is a theory, but changing a rear seal is a big job. If you have someone else do it, it going to cost you at least $600 most of the time.

Is it OK to add 1 liter of synthetic blend to a 4 liters of full synthetic oil?

Truth is, there is no "problem" with synthetic blends at all. Heck, in my crown vic, i could get 300k plus miles using regular conventional if i wanted.

The problem with amsoil is trying to buy it somewhere.when i need it i need it not a week later

Just buy the cheapest oil that is certified ( not just meet) for your requirements regardless of what groups, or blend or whatever. I'm not saying Amsoil is bad , but it is very expensive and almost never certified and you can't benifit from it when you have a car under warranty and need to respect certifications and drain intervals.

After listening to your video and going to the direct website, I'm really interested in buying Amsoil. But its not easily available like Royal Purple or Pennzoil. I'm guessing its just an advertisement/contract ordeal? . Also, I like your professionalism. Even when someone said they prefer another brand, you still gave them good info to use.

So people are better off just adding 1 quart of fully synthetic oil to their oil change to make their own synthetic oil blend?

i bought a new 2004 ford superduty and it said in the owners manual to only use a synthetic blend oil in the engine. so thats what ive been doing all along because i assumed there was a reason they didnt want you to use full synthetic. so does anyone out there know the truth on this. should i keep doing what ive been doing or change to full synthetic??????

I have a 1999 toyota avensis, the engine are very good and I am using a mineral base oil, however, after using a fully synthetic oil my engine are bleeding all over and I have to send it to the workshop for general overhaul. so enough with fully synthetic oil for me.

I use pensoil blend oil last truck still running with 350k on the clock , full synthetic , you forgot to mention , short runs not good for that oil as it leaves deposits .

You know, what he says is possible, but he doesn't know. He is guessing. Has he actually tested synthetic blends? I believe synthetic blends were conventionals with a heavy cleaning/additive package that was better than straight conventional and what you paid extra for was the additive package. It's was like buying an oil additive (like STP) and adding it to your oil.

Seems like the plain old conventional "non-synthetic blend" oils have been discontinued and replaced by "blends" which sucks imho. The only ones that I can find "for now" are in certain weights like sae30 and 10w30 but not 5w30.

How about Motorcraft synthetic blend ??

I’ve been wasting my money... At least I change my oil about every 2500 miles. Hopefully at 60,000 miles The engine on my pick up won’t have sludge starting to form.

Can a high mileage car rotary engine switch to synthetic oil and it cause to misfires seals to leak apex to flatten and what happens to the in combusted oil? Clogged fuel filters and burned up catalytic converter?

Well really it boils down to does the synthetic blend oil have all the required certifications and does it have more or less than conventional or full synthetic all a synthetic blend is a base conventional with added synthetic ingredients as well

Can you explain the difference between U.S. designation "Full Synthetic" and European designation "100% Synthetic"?

Nothing wrong with synthetic blend

How does Amsoil compare to Kendall synthetic? I have not found any comparison. I had a 3.6 HF GM engine seize. The farther away from the oil pump the more seized the crankshaft was. It was run on Castrol conventional oil changed every 3,000 miles and it had less than 50k. I suspect that carbon deposits plugged the crankshaft oil passage.

Thank you sir The working man were to lie like big corps he would go straight to jail & never see the light of day ,rapping the working man for profit is legal corporate pride at its best

Also the distribution scheme of amsoil is shady and the fact that they claim "meet" "surpass" or "suitable for" rather than certified is shady as well.

All this is, very clever marketing from all manufacturers, Motorcraft Synthetic blend works well in my Taurus, I have 320K on my 2013. A low percentage of automobiles are scrapped due to engine failure. Rather its due to corrosion, worn out chassis, unreliable electronics.

I have a car that has used conventional oil 10W - 30W. My car now has slightly over 75K miles. Every 3000 miles I get the oil changed with filter change. What in Amsoil for a 2008 Honda Accord can be used safely in the 4 cylinder engine?

Another friend has 317,000 miles on his Chevy van. Conventional oil only. Just keep your oil clean and you will get many many thousands of miles out of your engine.

Hi I go by monthes instead of miles. I use Havoline high mileage synthetic blend in my 2000 F150 4.2 V6. The reason I use this oil is because it's high mileage and the fact my truck has never leaked a drop of oil. Now to my question, am I doing something good for my truck's seals in the long run or am I just wasting my time and money?

Conventional oil is not bad. Havoline with Deposit Shield😊

I was always under the impression that mineral oil trapped dirt better than synthetic is that not the case? clearly regular changes is a must. the long life oil to me seems a lot like it lasts longer due to not storing the contamination in itself hense it doesn't thicken and slugding up like mineral does, am I way off the mark here?

I use blend now for 15 yrs never had an issue in none of my cars

Is there a way to find out what the blend ratios are for each brand of synthetic blend oil? Are the blend ratios published somewhere?

Everything he said was true but everyone thinks their favorite is the best.

This guy obviously is bias and is marketing his brand of oil.Look at his shirt it says Amsoil which is an European.I personally wouldn't trust anyone saying that you should change your oil every 25k.I think 3k to 5k should be a service oil change especially if you drive every day and tow or haul a full size truck

So heres the deal. If you want to run a synthetic blend, its because you understand the benefits of synthetic oil. Correct? In other words, you understand that conventional oil is obsolete or inferior at best. Correct? Then Why TF would you buy a blend?!!! Since it is synthetic oil DILUTED with conventional oil? Which you just admitted you wanted to GET AWAY FROM! Some of you people are walking dollar signs. Additionally, your anecdotal stories about how your crown vic running for 300,000mi on conventional oil means nothing, unless you tare it down, and post pics of the component wear, and sludge in the pan and valve covers.

I kave a brand new 250cc four stroke bike what would be the best amsoil to use in it. I live in the south the coldest it may get is -5 degrees and the hotest it may get will be 105 dergrees. So what do you say would be the best. thankyou

thanks for this video, the company I lease a truck from with a paccar engine requires at the oil change to use synthetic blend oil and boosted the change interval from 30,000 to 60,000 miles, I can tell you assuredly by 40,000 you can see a drop I fuel millage and the engine is running like shit, they assure us paccar approved the oil change interval, I highly doubt that now after seeing this. they have recently been telling us to make sure we keep our idle times down as it is causing problems with the def systems and causing quite costly repairs to the operator and significant down time, now we have apu' s I our trucks and fuel fired heaters so no one's idle time is really high at all and since I see other companies running the same trucks and engines as ours without apu' s idling all the time, I wonder if it's just what they are saying and it's because of the change interval causing more soot in the exhaust or something, does anyone have a idea on this ?

I like the signature series oil , but why doesnt it have the api stamp like the XL oil ?

I put by mistake Ams oil heavly fortified zinc Ams oil synthetic in first drive after my engine build, and just day past i am currently driving braking period, i didn't know that i supposed to use conventional oil in first braking period drive. Can i continiue using heavily fortified zinc Ams oil synthetic oil in Build engine braking period? Or should i change it to conventional oil before late and drive first 500 miles with it? i appreciate that if you reply before late. Thank you

Doesn't the federal government now require synthetic blend oil to contain at least 10% synthetic? If so, this video is obsolete.

Also some people lease there cars and just use whatever the dealer gives them for $9.99

Thanks buddy!

Very good information

Could a Synthetic Blend oil be responsible for gumming up a oil sending unit on my 2013 Chevy Tahoe, 5.3L engine. I have religiously changed my oil every 3,000 miles. The Tahoe has about 34,000 miles on it currently.

Listening to this guy is like watching paint dry.

I own a Ford Focus se 2012-2013 my owners manual says that I should use 5w20 blend synthetic but my question is what is going to happen if I use full synthetic oil ? Would it damage my engine in a long term ?

Amsoil is the best but man it's expensive, I had to pay almost $13 a quart. No I think Valvoline full synthetic or mobile one is good enough

this is 10 years old, but 25k between oil changes is idiotic. i dont care what the claims are

I wish i could use synthetic oil in my 99 ford expedition BUT its unknown if and when my seals where changed out , how old they are since i bought the vehicle used recently . If i run synthetic oil in my suv im sure ill get a oil leak / leaks . Therefore i have to run conventional oil and make sure to change it when im suppose too .

Thanks

Some people say ALL SYN BLENDS are not 50% Synthetic oi.... Well read this. WRONG PENNZOIL SYN BLEND IS 50% SYNTHETIC.. READ Benefits of Pennzoil® Synthetic Blend dexos1™ Motor Oil Contains at least 50% synthetic base oil for added oxidation stability, improved volatility and low temperature properties Backed by the Pennzoil Lubrication Limited Warranty

Hi, what is the problem with Synthetic Blend oil. Is it problem with old cars or new cars engine?

No thanks. I dont care how long Amsoil can go between changes. Its going to get dirty. I'd rather use something like Supertech and change it three times as often. My oil will be clean and I will save money on top of it.

I would use Amsoil but its so hard to find. You cant get it in a local store. I would love to use the AMSOIL ATF in my Honda Accord V6 3.0 Automatic... But you have to order from a magazine for somthing.. To much Trouble IMO.

Is amsoil signature series still pao or group 4 or have they changed it sadly?

Let's turn to God Let's repent and ask for forgiveness Let's study God's word and ask God for whatever we need for God's will to be done and thank God for sending Jesus to destroy evil for once at all times Thank you God Shepherdschapelcom Theseasonorg explains the whole Bible God bless