'08 V8 vs '09 V8 for mpg - Jeep Commander Forums: Jeep Commander Forum
Programmers/Engine Mods Questions or advice about programmers or engine mods? This is the place...

 
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post #1 of 1 (permalink) Old 03-11-2012, 12:25 PM Thread Starter
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'08 V8 vs '09 V8 for mpg

I understand the '09 has a different programing for better fuel mpg. I think it is supposed to give you 5% more mpg. I believe that's about 1 mpg per tankful. My question is can you buy something to reprogram the '08 engine? Has anyone done this? Is it cost effective?
Thanks.
Tom
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