2003 Chevy Tahoe – flex fuel

Dear Doctor: I have a Flex Fuel 2003 Chevy Tahoe with 129,000 highway miles. Now that gas prices are going higher I would like to use the E85 fuel. Would there be any problem switching from 87 octane gasoline to the flex fuel? Will the fuel delivery system parts be harmed? Gus


Dear Gus: The use of E-85 will not cause any problems with the Chevy’s fuel-injection system and or engine valves. Your engine is designed to run on either fuel.