[Got the Bug]

Originally Posted by zzmac

I actually have a small leak at the firewall end of both valve covers (that's where the dye shows up) which was going to be my next project after the oil change. I don't know the viscosity of what's in there now but maybe the 20/50 will save me some work.

The guy I spoke to at Roush said a 10W30 is fine if I don't drive the car hard. Would there be any negatives if I used the 20/50 if I don't drive the car hard or should I switch to the 20/50 and just start driving the car harder?

What State are located in? The only downside with the 20/50, is you probably don't want to use it in extremely cold climates. I ran the 20/50 in the winter in California and just blocked off my oil cooler.