Quote:
Originally Posted by redridge
did you also notice increase in pressure? this is why I like thicker oil...
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Anything over 10 psi per 1 K rpm is wasted HP. I do run 20w50 in our summers @ 100 degrees plus but in most areas that's not required at al....just old habit.
OTOH the car ran very cool...normally 190-195 in 100 degree plus weather. Winter 10-40 am running 180- 190. Both BPenn.