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DannoXYZ · June 13th, 2019, 02:12 PM

Black is actually OK, it's the carbon from combustion. I change oil on my race bike every 50-hrs and it turns black within the first day. Sending oil off for UOA will tell you the real specs on your oil such as TBN and other wear-indicators.

June 13th, 2019, 02:12 PM	#17
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Black is actually OK, it's the carbon from combustion. I change oil on my race bike every 50-hrs and it turns black within the first day. Sending oil off for UOA will tell you the real specs on your oil such as TBN and other wear-indicators.