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15W40 MULTI-VEHICLE (5 QT) - 18-9554-4 specifically developed for the heavy-duty inboard marine industry, including cruiser and towboats, 5 Quart Size, Case of 4. The API service categorization SM's performance requirements are met. It is not advisable to use gas engines that have catalytic converters. Sierra Heavy Duty is at the forefront of lubrication technology due to its premium base stocks and additive package components.
Key Features:
Specifications:
5 Quart Size, Case of 4, Specifically formulated for the heavy duty inboard marine market, including cruiser and towboats. Meets API Service classification up to CK-4. Meets the performance specifications for API service classification SM. NOT for use in gasoline engines equipped with catalytic converters