Quote:
Originally Posted by saturnkk
Would you use the 20-50 in the 302 also?!?
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He11 no!!!!!
As someone said you do not want to use ZDDP in a fuel injected engine, as it kills O2 sensors.
50 weight
oil is for engines that were built with loose tolerances, in full out racing type usage.
Look in your manual. I would bet Chevy called for 10-40 in the 68 327.
I think Ford called for 10-30 in the 95 5.0.
Do as you want. I wouldn't run 50W in any factory built engine, unless the manual expressly called for it.