Amsoil didn't do any better

Silicon is a bit higher than it should be; and AL is a lot higher than it should be. Bearings are AL on this engine, so abrasive particles are causing some bearing wear.
I’d check the air intake system really well for leaks to reduce grit getting into the oil.
I changed the engine air filter, and silicon came down, 15 PPM
 
Good morning. I guess all these oils are good. Amsoil just has a higher TBN, not by much though. First three oils are Mobil 1 AFE, Toyota, and Pennzoil Platinum. I think Pennzoil is the best deal of all four. What do you guys say?

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I noticed some big differences in the anti-wear additive in the sample dated 8/27/2024 at 144,619 miles. Can you remember which oil brand you drained out at that time; I am just wondering?
 
I noticed some big differences in the anti-wear additive in the sample dated 8/27/2024 at 144,619 miles. Can you remember which oil brand you drained out at that time; I am just wondering?
That's Toyota oil, the huge Moly.
 
Long drain oils are not for me. Amsoil is expensive and honestly it didn't impress me with this report.
If you examine a Patek Philippe with a 3lb sledgehammer, it won’t be very impressive, either. However, with a 60x loupe you’ll likely be amazed when you use the proper tool for the evaluation you’re trying to perform.

This is what @kschachn was referencing earlier when he said UOAs are not the proper tool for “impressing” you with regards to wear protection. UOAs’ effective information is to tell you if the oil is still serviceable from a viscosity, contamination, and fuel/antifreeze presence standpoint, not comparing “wear metals” between oil samples. Other, much more involved testing like SWRI conducts, is needed to determine any wear differences and costs hundreds to thousands of times as much as a single oil change does.
 
Good morning. I guess all these oils are good. Amsoil just has a higher TBN, not by much though. First three oils are Mobil 1 AFE, Toyota, and Pennzoil Platinum. I think Pennzoil is the best deal of all four. What do you guys say?

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You're wasting your money on such a short interval. A syn blend would probably yield the same results.
 
Silicon is a bit higher than it should be; and AL is a lot higher than it should be. Bearings are AL on this engine, so abrasive particles are causing some bearing wear.
I’d check the air intake system really well for leaks to reduce grit getting into the oil.
Naw. It could be from an additive. Need to compare to VOA.
 
I have some oil that I want to sell, made a thread under sales. Check it out if you need it

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I may be mistaken, but didn't the Toyota oil yield the best results? I mean based upon UOAs which doesn't mean much apparently. But the TBN was second highest, tons of moly and best wear metals of the bunch. Silicone may have been the air filter as described.
 
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