Engine oil AMSOIL or OEM Audi

I take my own oil to my mechanics shop. I use Amsoil Signature in my Challenger.

I use it on my 22 street Bob. My mechanic swears amsoil will make it run cooler but idk. I’m going to try the amsoil when my 10k comes up soon. I’ll always run synthetic either way.

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

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.

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!

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

Suggested I change oil from Castrol Syntec to maybe Royal Purple or Amsoil.