Synthetic 15W40 Diesel/Marine Engine Oil - 1 Gallon
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You have 30 days to request a return. All sale items are final sale.
Premium Synthetic 15W40 Diesel/Marine Engine Oil - 1 Gallon
High-performance synthetic multi-grade engine oil specifically formulated for marine diesel engines. This advanced 15W40 oil delivers superior protection, extended drain intervals, and reliable performance in demanding marine environments.
- Full Synthetic Formula - Advanced synthetic base oils for maximum protection and performance
- Multi-Grade Viscosity - 15W40 rating provides excellent flow in cold starts and protection at high temperatures
- Marine Diesel Specific - Formulated for the unique demands of marine diesel engines
- Superior Protection - Guards against wear, sludge, and deposits in high-load conditions
- Extended Drain Intervals - Synthetic formula lasts longer than conventional oils
- Thermal Stability - Resists breakdown under extreme heat and stress
- Corrosion Protection - Protects internal engine components from saltwater corrosion
SKU: AME1GC
Barcode: AME1GC
Size: 1 Gallon
Viscosity Grade: 15W40
Type: Full Synthetic
Application: Marine diesel engines (inboard, generator sets)
Specifications: Meets or exceeds API CJ-4, CI-4 PLUS, and ACEA E7 specifications. Suitable for turbocharged and naturally aspirated diesel engines.
Essential maintenance oil for keeping your marine diesel running smoothly and reliably. Synthetic formulation provides superior protection compared to conventional oils, especially in high-load marine applications. Ideal for cruising vessels, commercial boats, and auxiliary generators. Gallon size is economical for larger engines and multiple oil changes.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.