Prohibited Additives

The regular use of aftermarket fuel additives is not required or recommended due to potential engine and aftertreatment damage. These additives increase operating costs without providing benefit. The use of supplemental fuel additives does not necessarily void the engine warranty. However, warranty and repair expenses which are determined, by Detroit™ or its representative, to have resulted from a fuel additive will not be covered by Detroit™ warranty. For more information on fuel additives refer to “Lubricating Oil, Fuel and Filters Manual (DDC-SVC-BRO-0001)”, available through authorized Detroit™ service outlets.