FUEL ADDITIVE COMPOSITIONS AND FUEL COMPOSITIONS CONTAINING DETERGENTS AND FLUIDIZERS

摘要

The present invention is directed to fuel additive compositions of detergent s combined with fluidizers and to hydrocarbon fuel compositions containing the se fuel additive compositions. The fuel additive compositions of the present invention combine a Mannich detergent, formed from reaction of an alkylpheno l with an aldehyde and an amine, with a fluidizer that can be a polyetheramine or a polyether or a mixture thereof and, optionally, with a succinimide detergent. Fuel compositions containing these fuel additive compositions are very effective in reducing intake valve deposits in gasoline fueled engines, especially when the weight ratio of detergent(s) to fluidizer(s) is about 1: 1 on an actives basis.