Description
Specifically formulated for the heavy duty inboard marine market, including cruisers and towboats calling for a 15W-40. Premium base stocks and additive package ingredients places Sierra Heavy Duty at the leading edge of lubrication technology.
• Meets API Service classification up to CK-4
• Meets the performance specifications for API service classification SM
• Suitable for fuels on any sulfur level
• Not for use in gasoline engines equipped with catalytic converters
• Replaces: Shell Rotella T4, Delo 400, MerCruiser, Indmar, Pleasurecraft, Crusader, Volvo Penta, MasterCraft Sold in case pack only.
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