Just bought a YSi to put on my Dart 347 and was contemplating whether I need to run a heavier oil. Ran 5w30 synthetic in my old 500hp 306 but thought if I end up making 700+rwhp, maybe I should reconsider what to run. What's everyone's recommendations? I've heard Mobil 1 15w50 is good for this application and some friends recommended Valvoline VR1 20W50. What say you?
Sent from my not soo far away Galaxy...
Sent from my not soo far away Galaxy...
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