Does anyone know what viscosity oil NASCAR racers use?
Troy
Troy
You tell me...quote:
However, they are still using the higher additized/non catalytic converter formulation and not the current shelf Mobil 1
completely agree...they have needed a middle ground.quote:
5W40 would fill that hole in M1's line-up nicely
quote:
You must be having dreams of M1R sugar plum faires dancing in your head!