... exvellent wear protection FUKKOL MARINE ENGINE OIL SAE Grade 30W Specific GRAVITY @ 60°F 0.871 Density,lbs/gal @60°F 7 ... Test PASSFoam Test ,ASRM D892 PASSSulfated Ash,ASTM D874,WT% 0.8Total Base Number (TBN),ASTM D 2896 6.3Phosphorus,WT ... % 0.124-troke cycle outboard engines where the engine manufacturer specifies ...