We value your business as much as you do. That’s why RelaDyne offers the best selection of commercial fuels, oils, and other products you need to run successfully.

We offer hydraulic oils for your fleet components, as well as gear lubricants, heavy duty antifreeze, and more.

We offer a range of products delivering ultimate performance through our expertly formulated products and expanded delivery network.

Diesel Exhaust Fluid

RelaDyne is one of the largest distributors of Diesel Exhaust Fluid (DEF), a must-have for your fleets. Our DEF experts are in tune with every need and regulation you must abide by, a welcome value-added perk so that you can do less research on your needs and focus more on your business.

Heavy Duty Engine Warranty

As a Drydene HD engine oil user, you can sign up for a 10-year or 600,000 mile engine protection warranty for your on-road equipment. The Drydene HD Engine Warranty covers 16 vehicle engine parts and is completely transferrable.

RelaDyne Fluid Analysis Program

Our fuels and motor oils not only optimizes your trucks’ productivity, but our service offers enhanced efficiency and profitability. Large fleets can be time consuming and confusing to keep up with. With our Fluid Analysis Program, you can eliminate the headache of routine equipment maintenance. Specifically, you will experience optimized drain intervals, reduced maintenance and repair costs, and maximum longevity of your major fleet vehicle components.