122448 Mobil Delvac Extreme 15W-40 Synthetic Diesel Engine Oil | 4/1 Gallon Case
Equip your commercial fleet, heavy-duty transport rigs, or agricultural machinery for severe operating conditions with Mobil Delvac Extreme 15W-40 Heavy-Duty Diesel Engine Oil. Packaged in a highly convenient bulk case of four 1-gallon jugs, this premium, high-performance synthetic-blend formulation is engineered to satisfy the rigorous demands of modern, low-emission diesel engines.
Featuring a boosted additive system and top-tier synthetic base stocks, Mobil Delvac Extreme delivers extended drain capability of up to two times beyond standard OEM oil drain intervals. It actively fights soot formation, deposit buildup, and oxidation under intense thermal stress to maximize vehicle uptime and lower overall fleet operational costs.
Key Features
- Extended Drain Performance: Formulated with a boosted additive system that allows for safe oil drain intervals up to 2X the factory recommendation.
- Exceptional Wear Protection: Provides 44% more anti-wear protection than standard Mobil Delvac 1300 Super to preserve critical cylinder and bearing surfaces.
- Superior Thermal & Oxidation Stability: Combats oil thickening, high-temperature sludge, and varnish deposits even during extreme heavy-haul cycles.
- Outstanding TBN Retention: High Total Base Number (TBN) retention neutralizes acidic combustion byproducts, shielding engine metals from corrosive and abrasive wear.
- Robust Cold-Weather Flow: Delivers optimized low-temperature pumpability, ensuring immediate oil delivery to critical surfaces during freezing morning startups.
Applications & OEM Compatibility
Optimized for high-performance diesel engines equipped with Exhaust Gas Recirculation (EGR), Diesel Particulate Filters (DPF), and Diesel Oxidation Catalysts (DOC).
- Industry Standards: Meets or exceeds API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4, and ACEA E7/E11 specifications.
- Major OEM Approvals: Approved for use in heavy-duty machinery from Detroit Diesel, Cummins, Volvo, Mack, Caterpillar, and John Deere.
- Target Equipment: Ideal for Class 8 line-haul trucks, vocational construction fleets, mining equipment, and agricultural tractors.
