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August 2006 www.shell.com/us/vpower
 


Shell V-Power is the most advanced fuel Shell has ever developed.

Similar to the way food and soap scum build-up affects kitchen drains and pipes, low detergent gasolines can allow deposits to build up on your engine's intake valves and fuel injectors. This material can cause less efficient mixing of air and fuel and result in incomplete combustion in some cycles. Shell V-Power has more than five times the amount of cleaning agents required by federal government fuel standards and can clean up deposits left behind by low detergent gasolines.

The power source in today's vehicles is a sophisticated, computer-controlled engine that operates on a basic four-stroke combustion cycle. That cycle consists of the intake of fuel and air, compression of the mixture, ignition and subsequent power, and finally exhaustion of the combustion products. Proper combustion depends on a precise mixture of fuel and air at the time the spark plug fires. A vehicle's engine needs to draw fuel and air in precise quantities. Deposits in your car's engine can cause less efficient mixing of air and fuel and result in incomplete combustion in some cycles. Tests prove that, with regular use, Shell V-Power can remove those deposits that low detergent gasolines leave behind.

To learn more about maintaining your engine's "health", visit www.shell.com/us/vpower.

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