quote:I was not aware of this. I was only trying to stay with VW recommendations. He also lives in a hot climate. I am a fan of M1 10W-30, but it is spec'd for my car. I'm not sure I would want to go this thin in LA heat later with this one.
Originally posted by Drew99GT: Why not use 10w-30? There have been numerous UOA results with 5w-30 Mobil 1 in 1.8Ts, some beyond 10,000 miles, and the results were superb!
Originally posted by Rallyfan: Why not use the newer M1 5W-40 though? I used to run M1 10W-30 with a touch of 15W-50 in my turbo Subaru, but now that Kragen is carrying M1 5W-40 I've switched to that. With all the talk about this oil on the board, I would think someone would mention it for the VAG 1.8T motor especially since it calls for a 5W-40. Is there a reason not to run M1 5W-40? Thanks!
quote:Your local Wal-Mart should have Rotella-T 5w-40.
Originally posted by Brett7: Does anyone know if it is OK to use Mobil 1 synthetic 10W30 instead of the VW manufacturer spec of 5W40? I can't find 5W40 anywhere. Car is a 2003 VW Passat 1.8T