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Old 01-22-2013, 10:32 AM   #3104
CLL_OBP
Scooby Newbie
 
Member#: 310435
Join Date: Feb 2012
Location: North Carolina
Vehicle:
2012 Sport Limited
Obsidian Black Pearl

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Quote:
Originally Posted by myrt1987 View Post

I mostly notice it with 1/4 tank or less it takes more gas to maintain the same speed. I cant explain it myself.
Just a wild guess but maybe it could have something to do with the smaller amount of gas and the EVAP system / charcoal vapor canister. The system was designed to reduce pollution and draw fuel vapor into the engine to increase fuel efficiency. As the fuel level decease, the concentration of vapors decrease and the mpg's decrease. Feels like I'm grasping at straws, lol.
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