Castrol Power 1 ultimate is great and cheaper too.
I run Amsoil small engine oil in my 2000 inverter.
Amsoil since day one, never let me down and improves mileage as well.
Amsoil Signature 5w-30
but real talk: Castrol GTX Synthetic 10w40 in Tennessee summers and 5w40 in winter.
5W30 Castrol edge full synthetic
Castrol Syntec 5W-30, because of this: [https://my350z.com/forum/engine-and-drivetrain/258663-vq-oil-analysis-and-info.html](https://my350z.com/forum/engine-and-drivetrain/258663-vq-oil-analysis-and-info.html)
Between it and the Castrol Syntec 0W-30 it has less wear indicators in the oil than any other brand, at any other weight.
Redline and motul are the best but I’ve been running catrol for 50k+.
It’s probably placebo but I feel that I burn less with Amsoil. That said with current prices I’ve gone back to my default of Castrol.
As much as I love to use Mobil One, I am going to stick with Castrol because VW dealership won't give me any credit for the Castrol in exchange for the Mobil one.
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