Synthetic engine and drive train lubricants can improve fuel economy by about three percent, saving nearly 500 gallons of fuel and eliminating five metric tons of greenhouse gas emissions for a typical combination truck each year.
Lubricants reduce friction and wear of critical vehicle systems including the engine, transmission and drive train. Without lubricants, the moving parts inside these systems would grind together causing heat, stress and wear. Conventional mineral oil lubricants may have too high viscosity (internal friction that resists sliding and inhibits flow) to effectively slip between and lubricate the moving parts of these systems, particularly in newer truck components that are designed with close tolerances and tight fits. Conventional lubricants may also be heavy, making it harder for pumps, gears and shafts to move. These effects create energy losses and friction losses, and
waste fuel.
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