Schaeffer Manufacturing Co. 0700CK4-006 SynShield Durability Advantage Diesel Engine Oil 15W-40, 1-Gallon Bottle (Pack of 6)

Maximize your engine’s lifespan and performance with Schaeffer Manufacturing Co. 0700CK4-006S SynShield Durability Advantage 15W-40 Diesel Engine Oil. Specially engineered for heavy-duty diesel engines, this high-performance oil provides exceptional wear protection, oxidation stability, and soot control, even under the most severe operating conditions.

Blended with Micron Moly® and Penetro®, this oil reduces internal engine friction, lowers wear, and increases fuel efficiency. Its stay-in-grade performance ensures consistent viscosity across a broad temperature range, while its advanced detergent package disperses soot and sludge to keep your engine cleaner and running longer.

Ideal for fleet vehicles, trucks, and off-road equipment, this 1-gallon bottle (128 fl oz) offers professional-grade reliability trusted by diesel mechanics and heavy-duty operators across industries.

Key Features:

• SAE 15W-40 viscosity ideal for a range of diesel applications

• Advanced friction modifiers for improved fuel economy

• Outstanding oxidation and viscosity control for longer oil life

• Superior soot and deposit dispersion reduces buildup and wear

• Compatible with emission systems like EGR, DPF, and SCR

Cross-SKU Suggestions – Complete Your Diesel Maintenance Kit:

• For compact engines, check out Schaeffer SynShield 15W-40 Diesel Oil - 1 Quart for smaller volume needs.

• For multi-vehicle operations, try the Schaeffer 0700CK4-012 SynShield 15W-40 - 12-Pack Quarts for bulk value.

• Add the Schaeffer 131 Neutra Fuel Stabilizer - 12 oz to clean injectors and optimize combustion efficiency.

• Don't forget the Schaeffer 9000 Full Synthetic 5W-40 Diesel Oil for colder climates or high-performance diesel engines.