Fuel & Oil Additives

Fuel and oil additives can improve the lifespan and performance of your vehicles, and at Keller-Heartt, we help our customers protect their investments. For this reason, we carry a variety of fuel and oil additives, including Diesel Fuel Supplement and Diesel 911 from Power Service Diesel Additives at near-wholesale prices. Each of these innovative products is designed to fight contamination and ensure that your engines run smoothly for years to come.

At Keller-Heartt, we are proud to carry these bulk fuel and oil additives at affordable prices. We also offer free shipping on Chicago-area deliveries.