Originally Posted by LeoGTCS
Since we are talking about oil, I have a question. I have two vehicles, my wife has a '14 Explorer Sport wich uses 6qts of 5-30 and My GT that uses 8qts of 5-20. Is there something negative if I use 5-30 on the GT instead of the 5-20?
Some techs will tell you the 5.0 needs the lighter oil flow through all the extra-tight tolerances. I'm not a tech... But that's why I stayed with a 5w20. Seems like it should be fine as long as it starts with a 5.
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