What's the difference between a standard 5.3L and the 5.3L with "flex-fuel"?

 

i think the flex fuel uses that corn gas as well as reg. gas i might be wrong but i think thats what it is.

 

"Corn Gas"? Flex Fuel vehicles use up to 85% alcohol which can be made from corn, blended with gasoline. The vehicle has special components in the fuel system to deal with the corrosive nature of the alcohol. If your vehicle isn't designed to use this fuel mix, don't use it!

 

thats what i ment i just call it corn gas and most ppl iv talked to know what im talking about.

 

Most people I talk to are interested in technical accuracy! What is a Satran?

 

its an incorectly spelled gm product. and as long as the problem gets solved it dosnt realy matter how we get there does it?

 

This may help anyone out that has questions about Flex Fuel. It's 85% Ethanol mixed with 15% gas. http://www.e85fuel.com/index.php