07SGT Posted March 19, 2012 Report Share Posted March 19, 2012 Just curious. Many people swear by 5W-20 for the unmodified SGT and probably just as many swear by (or at) the 5W-30. Since the SGT holds 6 quarts I was just wondering what 3 quarts of each would do. It would be 5W-25. Thoughts? Quote Link to comment Share on other sites More sharing options...
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