Presidential Synthetic Blend 15W40 Diesel Oil

Presidential Synthetic Blend 15W40 is a high-performance 15w40 diesel oil designed for demanding engines in the toughest conditions.

Whether you’re running a fleet, a farm, or a construction site, this heavy duty diesel engine oil 15w40 offers dependable protection and performance.

Blended with advanced additive technology, it delivers excellent thermal stability, strong wear resistance, and extended service life. This synthetic oil for diesel engines also works in both new and older models, making it a versatile solution for trucks, tractors, buses, and off-road equipment.

You get modern protection—even in legacy engines.

The oil defends critical parts like rings, pistons, and bearings from wear, even under heavy load or high heat. Use it confidently in over-the-road haulers, agricultural machinery, and diesel-powered pickups. No matter the application, this 15w40 engine oil reduces engine wear, controls oxidation, and resists viscosity breakdown. Moreover, it’s built to handle long hours and harsh environments without compromising performance.

You’ll also benefit from extended drain intervals, helping reduce downtime and cut maintenance costs. Its enhanced formula protects against aeration, corrosion, and injector screw wear, while minimizing sludge and deposits in the crankcase.

Packaged for professionals, this 15w40 diesel oil supports longer service life and lower total cost of ownership.

It’s a smart choice for anyone who needs reliable, all-season protection across a wide range of equipment.

Presidential Synthetic Blend 15W40 is proudly engineered in the USA by Presidential Engineered Lubricants. Trust it to deliver the heavy-duty performance your operation depends on—every mile, every season.

• Suitable for use in older and newer engines with full back serviceability with API CJ-4 and most older engine oil qualities.

• OEM SPECS: DFS 93K222, DFS 93K218, RLD-4, RLD-3, ECF-3, ECF-2, M3575, EOS-4.5, EO-O Premium Plus, EO-N, VDS-4.5, VDS-4, VDS-3, CES 20086, CES 20081, MB 228.31, MTU Category 2.1, E9-2012, E7, WSS-M2C171-F1

• Exceptional wear performance and outstanding cylinder, bearing and ring wear results. Enhanced performance and extended drain capability versus API CJ-4. Improved oxidation protection and aeration control. Outstanding cross-head and injector screw weight loss. Excellent bore polish and cylinder wear results.