Doc's Diesel 15W-40 SEMI Synthetic Heavy-Duty Diesel Oil 55 Gallon Drum 2008-2016 and deep pleated filter paper

and deep pleated filter paper traps more grime to help your truck run longer

let engine run 20–30 minutes to allow SOS Diesel Treatment to work

DCS9667+D5526+DPA5535+D5W40

It’s simple upkeep that keeps your truck on the road where it belongs

Update your vehicle’s performance and reliability with Doc’s E-coated Hub Assemblies

Doc's Diesel 15W-40 SEMI Synthetic Heavy-Duty Diesel Oil 55 Gallon Drum 2008-2016 and deep pleated filter paperDoc'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