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**Jason Banks** · 10-05-2018, 09:06 AM

You would need to make sure you have the Flex Fuel sensor installed in the fuel line to unlock the E85 horespower.

I had a 2014 that I don't think was flex fuel compatible. My 2017 is, but it was an option and all the trucks I looked at didn't have the option.

I only put E85 in one time and didn't really notice a difference. I also didn't know there would be a difference until I read your post. But, I'm stuck on traffic most of the time anyway.

10-05-2018, 09:06 AM	#5
Jason Banks Senior Member Join Date: Dec 1999 Location: TX Posts: 1,535	Re: 5.3 You would need to make sure you have the Flex Fuel sensor installed in the fuel line to unlock the E85 horespower. I had a 2014 that I don't think was flex fuel compatible. My 2017 is, but it was an option and all the trucks I looked at didn't have the option. I only put E85 in one time and didn't really notice a difference. I also didn't know there would be a difference until I read your post. But, I'm stuck on traffic most of the time anyway.