Got my BLACKSTONE report back for my 2021 Tundra using AMSOIL. Here are the results.

I have a good friend who started selling Amsoil products several years ago, and for years he had been telling me how great they were compared to the other oil products out there. After some conversations in early 2024 he told me about a customer who had gotten an oil analysis from Blackstone that showed how great Amsoil oil was compared to the oil he was using and was converted after that moment.

He then told me that if I ran the Amsoil oil he would pay for the analysis to prove to me it was that much better. So, I took him up on his offer and put 8 quarts of Amsoil Signature Series OW-20 with an Amsoil oil filter into my 2021 Tundra TRD Pro double cab.

Now, he tried to tell me I could go 15,000 miles on the same oil filter, and then change the oil filter and go another 5-10k miles on the oil if I wanted to, but he tells his customers to go 10,000-15,000 and then change it. I decided to go to just under 10,000 miles because I wanted it as a basis and build up from there.

I was very surprised by the results that I got. Now, I do not have the results any longer for the Blackstone test I did on the Mobil1 0W-20 and Mobil1 oil filter due to an email hack around that time. With that said, I changed it at 9,000'ish miles and Blackstone recommended I change it sooner due to zero additive left in the oil and moderately high viscosity of the oil by that point. They recommended I pull it back to 7,500-8,000 maximum.

Now, jump to the Amsoil and the report said not only was the oil in perfect condition still at 9,602 miles, but they said to push it to 12,000 and have it tested again.

When I showed the results to my buddy he said, "Told ya" and yes I was sold. This was August of 2024 and I have no put Amsoil oil in my wife's Acura MDX, my daughters Honda Accord, my married daughters Honda Odyssey (free of charge), and my son's Toyota Tacoma, and I am excited to see what the results are for each of their vehicles.

Take a look, share your thoughts, but I do think Amsoil is a notch above the rest based on these results.

 

Feel free to add it here if you’d like for comparison.

https://www.tundras.com/threads/100k-mile-oil-analysis.146115/

 

Bout to ask a stupid question... What exactly does that chart show?

 

Im also an Amsoil dealer and always tell people who ask about the 15k mile claim "It all depends on how clean your engine runs". Just how Blackstone said to check the air filter for leaks....a poor running engine will absolutely trash a good oil and will make extended oil change intervals impossible.

By the looks of this report, seems like youre engine is doing just fine though. Unless you drastically change your driving conditions, Id say you can def go 12,500 next time. Nice of your friend to pay for the oil analysis...wonder why he didnt use the Amsoil analysis though...thats who I use.

 

There is certiantly less room for accusations of bias when using Blackstone vs the owner of the oil you are selling.




Despite all these wonderful results people have, I'll stick to 5k changes. I can see going 7.5k, but 10+ is a risk with no reward.

 

Which of those metal being high would indicate lifter wear? Is it different from what would indicate bearing wear? My last change was a lil glittery and I want to have this test done, I'd just like to know what I'm actually looking at. 10k interval is double what the maintenance reminder is set to, are y'all really resetting the reminder and just sending it another 5k?

 

I'm also an avid Amsoil user but I change every 5k miles. Even with an Amsoil filter. The last Blackstone report looked a lot like the OP's

 

https://www.blackstone-labs.com/report-explanation/

 

I'm curious how Amsoil is able to outperform Mobil 1 among others?

What are they doing different specifically? Do the additives make all the difference or is it something else?

 

M1 is no slouch. It’s all mine has had.

 

I get it...but i don't get it.

I get people want the best magic oil for their motors. But i don't get the logic paying so much extra for the oil and filter just to run it as long as they can.

Amsoil 0W20 is around $14.40ish a qt? The filter is $19.40ish. So you're paying 3-4 times as much for the oil then just sticking with normal oil/OEM filter and changing it every 5-10k miles which has been proven over and over again to be just fine.

 

Oil threads are fun and entirely subjective to each their own.

Amsoil products are fantastic; however, they've out-priced me as a continued consumer as I believe in 5k OCI, per manual, for my truck usage. 10k OCI are too long and 15k OCI is nuts.

I now use Pennzoil Ultra Platinum, 5w-30. Very comparable to Amsoil with testing and more affordable.

An engine with fresh oil is a happy engine.

 

I get the hype but it's just unnecessary. Good oil. Not any better than most other oils at 5k OCI.

 

What Intake are you running?

 

Does that change things with the oil usage/ability to stay "clean". Honest question, have no knowledge on it.

 

Yes. The intake is where the dirt or in this case the silica comes from. Aftermarket “performance” filters and intake setups often ingest more air by filtering less. So you get silica in the engine. Basically like fine sand that can get into the combustion chamber, create increased cylinder wear and get washed down into the oil.

 

I keep hearing from the forum that the 3UR-FE is very easy on the oil compared to other engines, and I am starting to believe it. You can run w20 all the way w40 according to owners manuals (depending on country). It would probably be fine on the new w16 and w8 hybrid engine oils.

Every time I check my oil, there is no fuel smell at all (unlike almost every turbo engine I've checked which smell like gasoline). In addition, the dipstick oil on the 5.7, up to 7500 miles which is my change interval, is golden brown (color of newer oil). Meanwhile on the turbo engines it is black after 1000 miles.

Amsoil probably provides a much greater benefit in turbo engines that are much harder on the oil.

 

"Turbo engines" being 3rd gens? Asking for a friend.

 

Am I reading it right that the viscosity seems oddly thick on the amsoil 0w20? The higher the number the “thicker” right? My 5w30 was 58.4.

 

Squirrel jism.

 

I heard the signature series is actually marmot jism

 

from the blackstone link i shared above in this thread.

Viscosity: Viscosity looks at the grade of the oil. If fuel/solvent is present, the viscosity will often be low. A high viscosity can be from oxidation or excess soot, or from an aftermarket additive

 

they aren't trade secrets if everyone knows about them.

 

Great question! This is the question I asked when I was being sold the benefits of Amsoil by my friend. These other companies do not use 100% synthetic oil. Nobody knows the exact percentages because companies because it would impact the sale of their products, but when you talk about this topic with ChatGPT it states that in Europe the American classification of Full Synthetic oil would not get approved and you could not sell it in Europe. The range apparently is anywhere between 53%-75% is the usual mixture of full synthetic with conventional oil.

Amsoil goes out of their way to tell you their oil is 100% synthetic oil no blends with conventional. Now, My buddy who sells Amsoil says that he has been told by other employees it is 90% oil and 10% additives. So, with no conventional oil to break down the rest of the oil and the additives to help it last longer, it makes sense that Amsoil lasts as long as it does and lubricates as long as it does.

 

If you are directing your question to me the OP, I have an aftermarket cold air intake made by Stillin on my Tundra. It is a high quality box with a circular K&N air filter.

 

100% understand what your concern is, but when you sign up on Amsoil's website you get a significant discount. Right now I logged into the website and a quart of OW-20 Signature Series is $11.89. On Wal-Mart's website as reference Mobil 1 OW-20 Extended Performance is $9.25. So there is a price difference of $2.64 a quart or in a Tundra's case $21.12 increase in Amsoil over Mobil 1. That extra cost is going to have to be up to each individual owner.

I will say this, what is great about competition in the market, is Amsoil is definitely starting to make a mark on the oil world, and each oil company is putting out a product very similar to Amsoil trying to compete in that high end oil market. That's great for everybody!

 

Well, it may be all in my head but this is the first time i ran amsoil and can tell right away how much smoother the engine. I mean really smooth, it’s hard to explain. I bought the truck back in Nov. 2024. Don’t know what oil was in there. Changed it out when i got it home to Pennzoil Ultra Platinum 5w30. Ran it and really didn’t notice much. Two weeks ago got the truck back from the dealer after a warranty fix on the oil leak from the timing. Noticed oil was at the “low” mark on the dipstick. Decided to change it out with amsoil signature series 5w30 with amsoil oil filter. Drove out of town the next day and keep thinking, the motor is strangely smooth. It was smooth before with pennzoil ultra, but not this kind of smooth. Like slippery smooth. Sounds wise it’s no different from the pennzoil ultra platinum. No change there. Anyway, i ordered some more amsoil 5w30 and filter today along with membership renewal of $16. Total came out to about $128 shipped. (2) 4 gal jugs and (1) filter. I’m ready for next year oci.. so far I’ve put about 300 miles on it and it still feel slippery smooth, in a good way. Then again, it could be all in my head. Lol

 

Rando question, but are you also running this same brand in the transmission? 2.5 gen asking.

Thanks.

 

I have not done the tranny yet. Planning on doing so but I’m sticking with toyota atf ws since all I’m doing is drain and fill. I did, however, use it in the front and rear diff with the 75w90 severe gear. Can’t say i notice anything drastic. Used 75w revanol in the transfer case.

 

When I hit 60,000 miles I did the same thing and kept the OEM transmission fluid. I had it done at the local dealership. My opinion on transmission fluid is the six speed tranny in the Tundra pretty much never fails when done at the right interval with Toyota fluid. Why mess with it ya know. Also, this 100,000 mile interval is absolute bullshit and the dealership tech told me himself that did my truck. He complimented me on doing it at 60,000 and went into extreme details about every vehicle from Corolla's all the way up to Tundra's that wait until 100,000 the fluid is practically brown. By that point damage is done because the fluid has been cooked. He said my fluid still looked great but said that is how it should be. Tranny fluid should never look brown period.

So, ATF Toyota is the way to go.