Patent ID: 6070558
Filing Date: 2000-06-06
Classification: C10L

Abstract:
A process for reducing liner lacquering in a marine diesel engine operating on a marine diesel fuel, said marine diesel fuel comprising a diesel fuel having a temperature for a 90% volume recovery during distillation greater than 420.degree. C. and an aromatics content greater than 25%, a saturates content less than 60% and an olefins content less than 3%, and being of a quality capable of giving rise to liner lacquering which process comprises adding to the fuel a liner lacquering reducing amount of a fuel-soluble composition comprising:(A) at least one diesel detergent selected from the group consisting (i) oil-soluble amides or imides of long-chain hydrocarbyl-substituted mono- or dicarboxylic acids or their anhydrides, and (ii) long-chain hydrocarbons having a polyamine attached directly thereto, and(B) at least one cetane improver selected from the group consisting of alkyl nitrates, ether nitrates, dinitrates of polyethylene glycol, and dinitrates of peroxides.