shortyb
Autocross Newbie
- Location
- Upstate SC
- Car(s)
- Felon Taxi,Dad Wagon
GTI doesn't specify 0W40.
No, but it does specify 502.00 which M1 0W-40 meets or exceeds. The first number being "winter" viscosity, or the "cold" viscosity, is rather moot at operating temps and the difference that a 0W has over a 5W as far as cold pumpability is nominal. The viscosity spread for a 0W is usually a function of superior synthetic basestocks. Need to focus on operating viscosity, shear resistance, dynamic film strength etc. much more than a W rating.