Quote:
Originally Posted by Wypipo
I have a gallon of T4. It is 15w40 and I don?t think it is full synthetic. Will I be able to use this with short oil change intervals or should I ditch it and get T6?
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Try the T4(regular oil) and see how your particular clutch performs. If you like it don't waste your money on T6(full synthetic). I've had six gassers and the clutches were all different - some did fine on the thicker T4, some worked better on the thinner T5 which is a semisynthetic, and my 07 gasser had to have T6 which is the thinnest viscosity of the three to keep that clutch from dragging.