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GhettoPop · 03-17-2003, 10:49 AM

Whats the best weight oil to put in a daily driver 90 GT? Since its spring now in NYC, i'm guessing 10w30 or 10w40? Any preference?

Also on a side note, I have a 72 challenger with a 340 bored 30 over, strickly used in summer for street driving/racing and occasional track time. Is 20w50 too thick? Any negatives? Thanks.

03-17-2003, 10:49 AM	#1
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	oil weight question Whats the best weight oil to put in a daily driver 90 GT? Since its spring now in NYC, i'm guessing 10w30 or 10w40? Any preference? Also on a side note, I have a 72 challenger with a 340 bored 30 over, strickly used in summer for street driving/racing and occasional track time. Is 20w50 too thick? Any negatives? Thanks.