Material Notes:
Description: Conoco El Mar® Mid Ash Supreme Oil is a premium-quality, mid ash gas engine oil recommended for naturally aspirated and moderately to highly turbocharged four-cycle gas engines, such as Cooper-Superior (formerly White-Superior) and the Waukesha VHP GL turbocharged lean-burn engines (3521, 5115, 7042 and 9390) requiring a nominal 1 percent sulfated ash oil. El Mar Mid Ash Supreme is formulated with a limited phosphorus and zinc content for catalytic converter protection. For those makes and models of engines requiring a low ash oil, Conoco Hydroclear El Mar LA4 is preferred. Please consult a Conoco representative for the appropriate recommendation. El Mar Mid Ash Supreme Oil is formulated with high viscosity-index base oils blended with selected additives and a unique ashless dispersant to provide excellent resistance to oxidation and nitration, reduced carbon-forming tendencies, excellent piston ring groove and crankcase cleanliness and improved ring and liner protection. Remote engines operated intermittently or in cold weather benefit from the low temperature pumpability provided by the SAE 15W-40 viscosity grade.Information provided by ConocoPhillips.