shelbydream1 Posted May 8, 2007 Report Share Posted May 8, 2007 ANYONE HAVE ANY THOUGHTS ABOUT SYNTHETICS IN THE SGT? GOOD IDEA? ANYONE BETTER THAN OTHERS? Link to comment Share on other sites More sharing options...
UltraStang#1 Posted May 8, 2007 Report Share Posted May 8, 2007 Royal Purple. 5W20 with Motorcraft filter. Good stuff. Change the filter at 5000 miles and add a quart to top off the oil level. Do a full oil and filter change at 7500-8000 miles. Link to comment Share on other sites More sharing options...
07shelbygt109 Posted May 9, 2007 Report Share Posted May 9, 2007 I'm going to put Amsoil in mine when the time comes. Link to comment Share on other sites More sharing options...
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