Originally Posted By quickd100
On my old 426 wedge Dyno mule there was a 20+ hp difference between cold oil and hot oil using 15/40. Warm the oil.

I did some oil temp testing on the first motor I dyno tested, I saw 8 HP gain from 130 F oil temps with straight 30 wt. oil to 170 F work
Later on I switch to 10w30Wt on a different engine and the same brand DTS dyno and saw 3 HP gain difference between 130F and 180 F shruggy
On the next motor I built and dyno tested I switch to 5W20WT and saw no HP differences between 70F and 220 F oil temps boogie work shruggy

Last edited by Cab_Burge; 04/22/18 03:19 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)