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AMSOIL Freedom Series Diesel Oil

The Freedom Series Diesel Oil product line.

AMSOIL has launched Freedom Series, a line of premium diesel lubricants engineered through a close, technical partnership with Fleece Performance Engineering. By combining AMSOIL leadership in synthetic lubricant design with deep Fleece expertise in high‑performance diesel engineering, Freedom Series delivers exceptional protection and performance for turbodiesel pickups — from daily drivers to high‑output builds and racing applications.

Powering Performance

Freedom Series represents a significant expansion of the AMSOIL diesel portfolio, combining advanced AMSOIL formulation expertise with insights from one of the diesel industry’s most performance‑driven engineering teams. The products were co‑designed through an iterative development process that merged AMSOIL formulation prowess with real‑world insights from Fleece performance and racing programs.

Each product in the series was developed to withstand extreme heat, heavy loads and the elevated stress common in modified and high‑performance diesel platforms. The Freedom Series lineup includes 10W‑30, 5W‑40 and 15W‑40 100% Synthetic Diesel Oil; 15W‑50 100% Synthetic Racing Oil; and SAE 30 Break‑In Oil.

“Diesel enthusiasts and engine builders push their equipment harder than ever, and they need lubricants engineered to keep up,” said Ryan Radzak, AMSOIL Product Marketing Manager. “Freedom Series reflects our commitment to delivering purpose‑built solutions that perform in the most demanding conditions.”

Fleece Performance Engineering

Based in Pittsboro, Ind., Fleece Performance manufactures everything from turbochargers to cylinder heads and long blocks, while Freedom Racing Engines operates as a separate division of the company. Fleece Performance is one of the most recognized names in the high-performance diesel market and boasts a solid reputation for innovation, quality and service.

“Partnering with AMSOIL allowed us to influence the lubricant design at a molecular level for the first time,” said Jeff Everett, Fleece Performance Engineering’s VP of Sales. “Freedom Series gives diesel enthusiasts and engine builders products that were created through real collaboration from industry leaders — products that are engineered to perform.”

How to Find It

Freedom Series is now available in the United States through AMSOIL.com, independent AMSOIL Dealers and participating Fleece distribution partners as well as FleecePerformance.com. The line is not currently available in Canada.

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