AMSOIL is partnering with Fleece Performance Engineering, a leading manufacturer of aftermarket diesel performance products based in Pittsboro, Ind. Fleece Performance manufactures everything from turbochargers to cylinder heads and long blocks, while Freedom Racing Engines operates as a separate divisions of the company. Fleece Performance is one of the most recognized names in the high-performance diesel market and boast a solid reputation for innovation, quality and service.
Fleece Performance Engineering is a leading manufacturer of aftermarket diesel performance products. With a reputation for innovation, quality, and service, our products push the limits
This high-profile partnership, once again, not only validates our leadership and elevates our visibility with diesel enthusiasts. Fleece Performance selected AMSOIL to engineer a new line of co-branded lubricants to be launched in the spring of 2026. The new AMSOIL and Fleece Performance Freedom Series line of diesel products will include 10W-30, 5W-40 and 15W-40 Synthetic Diesel Oil; 15W-50 Synthetic Racing Oil; and SAE 30 Break-In Oil.
Fleece Performance Engineering offers the highest quality direct replacement and Cummins performance parts for your 1989-2024 Cummins equipped truck. From our Cheetah turbochargers, PowerFlo lifr pumps and Coolant Bypass kits to complete Freedom Series long blocks Fleece Performance has you covered with the reliability you’ve come to know and peace of mind you’d expect.
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Dodge, Ram, Cummins, GM, Duramax, Ford, PowerStroke, and Toyota are registered trademarks of FCA (Fiat Chrysler Automobiles), GM (General Motors), Ford, and Toyota Motor Corporation respectively. Fleece Performance Engineering Inc has no affiliation with FCA, GM, Ford, or Toyota. Throughout this website the terms Dodge, Ram, Cummins, GM, Duramax, Ford, PowerStroke, Toyota, Tundra, and Tacoma are used for identification and fitment purposes only.
