I'm a loyal Amsoil user. I usually change my oil every 5k miles. However, 3 oil changes ago, I started sending samples to Blackstone.
First Analysis: paraphrased, engine looks great
Second Analysis 5k miles later: Engine Looks great, Oil still has plenty of life
Third Analysis, another 5k miles later: everything looks great, try waiting 8k between oil changes.
I just put Amsoil High Mileage, 0w20 in my 2012 Camry to see if it will benefit my engine with 221,000 on it. I switched from Mobil 1, which I used for years changing at 5K intervals, but had to keep topping off very often. The engine flush was excellent, the oil I drained only had 1500 miles on it and it came out looking like liquid coal! So a cleaning did take place, I'll see how it goes.
Honestly, any brand should be okay as long as you change your oil every 5k miles. Personally I run Penz ultra plat. I never burn oil with it and my engine sounds quieter than it did w/ Mobil 1.
Put about 300K on two different M54's so far. Originally Mobil1/Castrol 0W30 (that was the original BMW recommendation in early 2000s), eventually switched to Pennzoil Euro 5W40 for oil leak reduction.
I also wouldn’t run motorcraft period in my 5.0, in the words of a friend who’s a master mechanic “they sell cars not oil”. Just some food for thought, I did run it until he gave me this one line, I now run amsoil and my 5.0 and 6.2 and 3.0TT are all much quieter, for what ever that’s worth
Me running 5w50 Amsoil SSO full synthetic or 0w50 Eneos or 0w40 Amsoil SSO if being used in winter (down to -40F, and yes, I've driven these cars down to that cold)
Synthetic is better, always. Higher not viscosity has better shear protection. A good additive package that has great shear protection lets the housings wear slower.
I switched to Pennzoil Ultra Platinum full synthetic made from natural gas. Oil consumption is 1/2qt in 5K.
I flip between Pennzoil Ultra Platinum and Motul depending on if I choose to order ahead of time or just do it when I feel like.
Pennzoil Platinum Ultra is also commonly used/recommended instead of the Motul and is cheaper.
im actually running that oil right now... I hate it tbh. 3,100 on the oil and it has allowed excess engine noise since day one, SUPER harsh cold starts, and now its burning through faster than the catrol I ran when I first got the car. a WHOLE QUART over 750 miles. the oil is thinner than piss going in, and it just doesnt stand up to what my engine can put out like Shell Rotella T6 has been doing...
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