“At Leahy-Wolf, we are in the business of finding solutions to our customers’ needs. Our company was founded by pioneers in the fuels and lubricants industry, and we have continued to innovate and strive for excellence. My father, in particular, was instrumental in the development of one of the first environmentally safe form-oils in the industry. I am committed to carrying on this legacy and bringing Leahy-Wolf to even greater heights of customer satisfaction by providing top-performing products at the best value. We are always seeking new ways to improve and serve our customers to the best of our ability.”
– Keanan Leahy, Third Generation, Leahy-Wolf
Keanan Truck


We are committed to providing our customers with the best value for their money. To achieve this, we partner with independent research labs and reliable suppliers to access the latest technologies and innovations. The lubricants we sell are also subject to external performance evaluations to ensure they meet the highest standards. As a result, our product lines offer cost-effective solutions that deliver superior performance.


Providing “one-stop-shopping” doesn’t mean “one-solution-shopping.” Leahy-Wolf understands the range of issues and performance expectations of their diverse customers. Their lubricant solutions are as varied as their customers’ needs.


Friction is the force that resists two contacting properties. It generates heat, wear, and wastes energy. Friction consumes one-third of all energy produced.




In 1946, James Leahy and Herbert Wolf established Leahy-Wolf with a vision to provide fuel to homes and businesses in the Chicago area. With their expertise in petroleum products, they quickly diversified into the lubricant industry, using their extensive knowledge of fuels, machinery, and extreme climate conditions to become leading innovators in the volatile road construction sector.
Their combined experience and drive for excellence laid the foundation for Leahy-Wolf’s continued success as a trusted provider of high-quality lubricants. Today, the company remains committed to offering the best value products and services to our customers, building on the legacy of James Leahy and Herbert Wolf.”
Old Truck LW