i came across 10 free gallons of royal purple 5w20. Does anyone think this would be ok to use in my 351pmc.
i came across 10 free gallons of royal purple 5w20. Does anyone think this would be ok to use in my 351pmc.
88 Supra Comp ts6m
I have been using Mobil 1 15w50 in my 89 351 since break in . My brother in law raves about the royal purple.
Have you been running full synthetic oil prior? (Plan to continue if you haven't already?).
My concern would be the weight of the oil (w20) as that seems a little thin and with the heat the motor creates...
2004 Supra Launch 22 SSV
5.7L Indmar Assault
"One More Hour"