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					Originally Posted by JFP in PA  I would not go any lighter than a 5W-40, prefering a 10W-40 in warm climates due to improved film strenghts.  I would also focus on ZDDP content.
 There are several brands worth looking at, in cluding Joe Gibbs, Motul, Castrol, and even some of the Shell Rotella's.
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JFP, I thought the Shell Rotella Full Synthetic is just for Diesel Engines, is that correct?