Engine oil PENNZOIL or AMSOIL

I have personal experience with using amsoil in a Cadillac Northstar which are notorious for burning. It did stop that in that car

I use Full Synthetic ( Pennzoil Platinum). At 24K I really can't even tell the engine is running when I come to a stop, its just that smooth and quiet.

1.3 million on Amsoil. Shell is a close second.

Amsoil is worth it and head and shoulders above the competition. I used a custom built testing apparatus to characterize dozens of lubricants including oils of all weights from Mobil 1, Castrol, penzoil, valvoline, and Amsoil.

Pennsoil Platinum High Mileage 0W20. It seems to run best on it, at least among the wal mart oils.

On my 05 cr125 I ran amsoil low smoke for riding mostly harder enduro stuff (worst bike for it, but a fun challenge).

I got a good deal on some amsoil and I love it, pricey but worth it tbh!

I’ve used pennzoil platinum or ultra platinum on my 8th and 9th gen si. Never burns a drop in the 3.5k mile interval changes and I beat the thing like I stole it most days.

Amsoil z-rod is what I run but nothing wrong with rotella diesel oil.

Amsoil. I run it in anything and everything they make fluids for. Even the 2 strokes. Father has been a dealer for decades and the number of stories he has backing up amsoi's marketing claims is IMPRESSIVE. I've personally seen a few success stories already and PLENTY of scientific testing