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Original post by: Cliff ,


I have been using a scan gauge (the original, not the KR version) on my 2013 glider since day one.  Not sure which factory rebuilt 12.7 I have, just that it is 500 hp.  It has 544,000 miles on it now, uses about 2-3 qts of oil in 22,500 miles.  Oil samples look as good as it has since the second oil change when it got it's first oil sample test.  Been running a Schaeffer 10w30 syn blend in it for the last year and as good or better used oil sample reports as with 15w40.