Shell Rotella T4 Triple Protection 15W-40 Diesel Engine Oil | 18.9 L Pail | 028-7932-6
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Shell Rotella T4 Triple Protection 15W-40 Diesel Engine Oil — 18.9 L Pail
Part / Item Number: 028-7932-6 | Brand: Shell Rotella
Shell Rotella T4 Triple Protection is a conventional 15W-40 heavy-duty diesel engine oil formulated to protect against wear, deposits, and oil breakdown under the demanding conditions of diesel engine operation. The 18.9 L (5 US gal.) pail format is suited to workshops, fleet operators, and boat owners managing multiple engines or higher oil-volume services.
Rotella T4 is API CK-4 licensed, backward-compatible with CJ-4, CI-4 PLUS, and earlier API service categories, and meets the requirements of a broad range of diesel engine OEM specifications.
Specifications
- Part / Item Number: 028-7932-6
- Brand: Shell Rotella
- Product Name: Rotella T4 Triple Protection
- Viscosity Grade: SAE 15W-40
- Oil Type: Conventional (mineral-base) heavy-duty diesel engine oil
- Container Size: 18.9 L / 5 US gal. pail
- API Service Category: CK-4 (backward-compatible with CJ-4, CI-4 PLUS, CI-4, CH-4)
- Approvals / Meets Requirements: Cummins CES 20086, Detroit Fluid Specification 93K222, Caterpillar ECF-3, Mack EOS-4.5, Volvo VDS-4.5, MB 228.31
- Weight: approx. 17.5 kg / 38.6 lb (full pail)
Suitable Applications
Shell Rotella T4 15W-40 is formulated for four-stroke diesel engines in on-highway, off-highway, marine, and stationary applications. Suitable for:
- Diesel-powered marine engines (inboard and generator sets) where the engine OEM specifies a CK-4 / CJ-4 or equivalent API-licensed 15W-40
- Heavy-duty on-highway diesel trucks and buses
- Agricultural, construction, and off-road diesel equipment
- Stationary diesel generators
- Mixed-fleet applications requiring a single CI-4 / CK-4 compatible 15W-40
Important — confirm OEM specification before use: Always verify that 15W-40 and the API CK-4 category are correct for your specific engine and operating conditions. Some marine diesel engines specify a lighter viscosity or a synthetic formulation. Check the engine owner’s manual or OEM service documentation before filling.
Key Performance Properties
- Wear protection: Advanced additive system reduces metal-to-metal contact under high load
- Deposit control: Helps keep pistons and rings clean to maintain power output and fuel economy
- Oil stability: Formulated to resist viscosity and chemical breakdown over the service interval
- Soot handling: Designed to manage soot loading in diesel combustion environments
- Cold-flow: 15W rating provides cold-start flow protection down to approximately −15°C (5°F)
Service Interval Guidance
- Follow the engine manufacturer’s recommended oil change interval — do not extend intervals beyond OEM guidance
- Marine diesel engines in continuous or high-load service typically have shorter oil change intervals than the same engine in light-duty use
- Check the oil level at each use and top up as required with the same viscosity and API category
- Always replace the oil filter at each oil change — see related products below for compatible filters
- Dispose of used oil responsibly at an approved collection facility
Cross-Reference
- Item Number: 028-7932-6
- Also referenced as: 028-7932
- Shell Rotella product line: T4 Triple Protection, 15W-40 conventional
Related Products
- Volvo Penta Oil Filter 3840525 — OEM Volvo Penta oil filter for applicable diesel engine service
Parts Desk Insights
Best use case: The 18.9 L pail is the economical choice when you’re servicing multiple engines, doing a full season’s worth of oil changes, or running a larger diesel with a high-capacity sump. Rotella T4 15W-40 is a reliable general-purpose diesel oil that satisfies the OEM requirements of a wide range of diesel engines — including many marine diesels from Yanmar, Perkins, Westerbeke, and Volvo Penta — without needing a brand-specific formulation, provided the engine spec calls for a CK-4 or CJ-4 category 15W-40.
Common issues: The most frequent mistake is assuming all diesel engines take 15W-40. Some smaller marine diesels and modern high-pressure common-rail engines specify a lighter oil — 5W-30 or 5W-40 — and using 15W-40 in those engines can increase wear at cold start or reduce fuel efficiency. Always check the engine OEM specification, not just the oil change label on the boat, before filling from a pail. The second issue is mixing API categories when topping up — use the same API service category throughout the drain interval.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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Packaging must be undamaged and suitable for resale
Important:
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