Re: quattro-digest V3 #829

[Bewildered@aol.com]

Regarding the post from JEFDO@aol.com about using RedLine 20W50 in his S4:
I've spoken to Roy Howell of RedLine Oil about which viscosity to use in my
S4. He strongly recommended 10W30 for most all circumstances. Under extremely
hot conditions when driving VERY hard where extended high rpm would be
encountered, he said he might go to the 10W40. He said that 20W50 is not a
good idea since you will gain nothing and it will rob your engine of some
power and won't cool the engine as well.
Even the Kelly-Moss (racing) Porsche Turbos use RedLine 40 weight (actually a
15W40) rather than the 20W50.

Bill