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.
| Brand | Dometic / Sierra Engine Parts |
| Case | 12 |
| Grade | 15W-40 |
| Size | Quart |