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- Sierra 15W40 Marine Diesel Engine Oil 4L – Premium Protection
Sierra 15W40 Marine Diesel Engine Oil 4L – Premium Protection
Product Code: SIE18-9554-3
Sierra Premium Blend oil is formulated to protect your diesel engine in a wide range of conditions. Compatible with today’s diesel engines, this oil meets or exceeds the requirements of many of the leading engine manufacturers (see list below). Excellent detergency, corrosion protection, and anti-wear properties make this marine oil a first choice for many marine diesel mechanics.