Two respected names in the diesel performance world are teaming up to deliver premium lubrication solutions for both diesel enthusiasts and racers. Fleece Performance Engineering and Amsoil have officially forged a strategic partnership and will launch a new line of co-branded lubricants called the Freedom Series in spring 2026.
The Freedom Series lineup will feature multiple viscosity options tailored to both everyday diesel drivers and high-performance competitors. Products include 10W-30, 5W-40 and 15W-40 100% Synthetic Diesel Oil, 15W-50 100% Synthetic Racing Oil, and SAE 30 Break-In Oil. Engineered by Amsoil, these new fluids are designed to deliver maximum turbo cleanliness, superior soot control, and outstanding wear protection—exactly what modern diesel platforms demand.
All products will be available through Fleece Performance Engineering’s wholesale and dealer channels, as well as Amsoil.com and the Amsoil Dealer Network, ensuring seamless distribution for customers eager to get their hands on the new offerings.
The partnership reflects a natural evolution in the long-standing relationship between the two brands. “Fleece has been a long-time consumer of Amsoil products in our race programs,” said founders Brayden and Chase Fleece. “The partnership with Amsoil to bring the new fluids to market was a natural fit for both businesses given our history together, and we’re excited to offer these products through both companies’ distribution channels.”
Amsoil sees the collaboration as a perfect alignment of values and capabilities. “Fleece is a leader in high-performance diesel technology,” stated Amsoil Chairman & CEO Alan Amatuzio. “They have a passion for innovation, they have a quality-first mentality, and they strive to provide their customers with unique products that perform as promised. We have those things in common, so it’s exciting to partner with a like-minded organization to produce exceptional products for diesel enthusiasts.”
Founded in 2008 and headquartered in Pittsboro, Indiana, Fleece Performance Engineering has earned a reputation as one of the diesel aftermarket’s most trusted names. From turbocharging innovation to advanced manufacturing techniques, Fleece continues to push the boundaries of what’s possible in performance.
Amsoil, headquartered in Superior, Wisconsin, is well-known for pioneering synthetic lubrication technology and producing premium products for those who demand the best from their engines and equipment.
With the Freedom Series, both companies are doubling down on their shared mission: delivering unmatched performance for diesel owners who expect more. Look for the new products to hit shelves and online channels in spring 2026—and expect a new level of freedom under the hood.
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