Doc's Diesel 15W-40 SEMI Synthetic Heavy-Duty Diesel Oil 192 Gallon SkidDoc's Diesel Engine Oil: Doc's Diesel 15W 40 SEMI Synthetic Heavy Duty Diesel Oil is built for heavy duty diesel engines that demand superior performance and long lasting protection. Whether youre operating a modern emissions compliant fleet or maintaining reliable older equipment, this advanced formulation is engineered to deliver exceptional durability, cleanliness, and fuel efficiency under the toughest conditions. Product Details: Maximized Engine

Drilled/Slotted

Boosts cetane by raising fuel cetane levels for faster

Simply add 1

high-heat conditions

0L Powerstroke Cabin Air Filter fits 2017-2025

7L Powerstroke Fuel/Water Separator 2011-2016

DPS9059+DF209+D5399+DPA6146+D3977+D5W40

While engine oil does a great job protecting your engine

fewer repairs

Doc's Ram 1500 3

this advanced formulation is engineered to deliver exceptional durability

Reduces coefficient of friction