Glycerol esters as fuel economy additives

Patent · Tue Jul 28 04:00:00 EDT 1987

OSTI ID:6218402

Brewster, P W; Smith, C R; Gowland, F W

A lubricating oil composition formulated is described for use as a crankcase lubricating oil composition for gasoline or diesel engines consisting essentially of a major amount of a mineral oil of a lubricating viscosity which has incorporated about 0.20 weight percent of a glycerol partial ester. The partial ester is a mixture of glycerol monooleate and glycerol dioleate. The mixture has a weight ratio of 3 parts of glycerol monooleate to 2 parts of glycerol dioleate the ester providing a fuel economy improvement of about 1 to 3 percent when the lubricating oil composition is employed in the crankcase of the engine. An ashless dispersant, a metal detergent additive, a zinc dihdyrocarbyl dithiophosphate anti-wear additive and an antioxidant. The dispersant, detergent, anti-wear additive and antioxidant are present in conventional amounts to provide their normal attendant functions.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4683069
• OSTI ID: 6218402
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
ADDITIVES
ALCOHOLS
ANTIOXIDANTS
CHEMICAL COMPOSITION
DETERGENTS
DIESEL ENGINES
EMULSIFIERS
ENGINES
ESTERS
FUEL ADDITIVES
FUEL ECONOMY
GLYCEROL
HEAT ENGINES
HYDROXY COMPOUNDS
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATING PROPERTIES
MINERAL OILS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
SURFACTANTS
VISCOSITY
WETTING AGENTS