About Freedom Series 10W-30 Diesel Oil
Freedom Series 10W-30 came from AMSOIL’s partnership with Fleece Performance Engineering and is aimed at diesel pickups, including those running Fleece performance parts.
Before you choose
Confirm the permitted 10W-30 viscosity, the required diesel-oil category, and any OEM specification for your engine and emissions equipment.
Is Freedom Series only for trucks with Fleece parts?
AMSOIL describes it as developed for trucks with Fleece Performance products; compare its current specifications with your engine’s requirements. Ask Jeff for help gathering the right product information.
Product information reviewed September 23, 2026. Read AMSOIL’s current details.
