Engine oil MOTUL or AMSOIL

My T/A 392 has seen 311°F. ????. I added a bigger oil cooler after that.

I was running 0w40 Amsoil Signature, no metal in the filter.

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.

Motul is cheaper than Petronas and it's a very good oil.

Best oil for me is Motul 8100 X-Clean 5W-40 C3, or Liquil Moly. 5W-40 because I got more hot climate here (Greece).

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 would recommend Motul.

I’ve got Motul Sport 5W30 for my MY12 XV, which ain’t a turbo ofcourse????

But next time I’ll go for sport 5W40, as it’s better for long driving in temperatures like 30(+) degrees Celsius outside.

The Sport range is by the way also good again low speed pre-ignition.

I am currently using Motul X clean EFE 5w30 using it because it was Tuner/shop recommended by Dmann/Felix Performance who did change for me prior to a tune/dyno and I haven't switched back.

I do have slight oil loss but I also track my car several times a year so it's to be expected. Recently switched to 5w-40 motul so we'll see how that does.