AMSOIL INC., Fleece Performance Engineering Forge New Partnership, Introduce New Co-Branded Line of Lubricants for Diesel Enthusiasts

Motortopia Staff . December 11, 2025 . Press Release

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Superior, Wis. – Fleece Performance Engineering and AMSOIL have forged a new strategic partnership and will introduce a line of co-branded lubricants in the spring of 2026. The new Freedom Series line of diesel products will include 10W-30, 5W-40 and 15W-40 100% Synthetic Diesel Oil; 15W-50 100% Synthetic Racing Oil; and SAE 30 Break-In Oil. The new products are engineered by AMSOIL for maximum turbo cleanliness, superior soot control and outstanding wear protection, and will be available through the Fleece Performance Engineering wholesale and dealer channels, AMSOIL.com and the AMSOIL Dealer network.

“Fleece has been a long-time consumer of AMSOIL products in our race programs,” said Fleece Performance Engineering Founders Brayden Fleece 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.”

“Fleece is a leader in high-performance diesel technology,” said 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.”

About Fleece Performance Engineering

Fleece Performance Engineering is a leading innovator in diesel performance products and advanced manufacturing solutions. Headquartered in Pittsboro, Indiana, the company designs, engineers and manufactures a wide range of high-performance products trusted by enthusiasts, racers and automotive professionals around the world.

Founded in 2008 by brothers Brayden and Chase Fleece, Fleece Performance Engineering has become one of the most trusted names in the diesel aftermarket.

About AMSOIL

AMSOIL formulates advanced lubricants and performance products for those who demand the best. For more information or to order, contact your nearest AMSOIL Dealer or visit AMSOIL.com.

AMSOIL INC., 925 Tower Ave. Superior, WI 54880.

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