I found out a few months ago my battery was dead. It still started the car just fine but if I left anything on for more than 10 minutes without the car running I would need a jump.
So after my credit card came in I got a new battery from walmart. To my surprise my mpg increased from 26-28. Not great but every little bit counts. Just thought I would give everyone else the heads up to get their battery checked, it can affect more than you think.
lol....did you get a lighter battery...by maybe 200 lbs?
Nope I've reset the ecu multiple times, and disconnected the battery too definitely nothing with the ECU. I thought it was pretty crazy that it helped my mpg also so thats why I figured it was worth letting others know.
ehhhh, to be honest, i think your 2 mpg gain could have been the result of a variety of factors. from daily driving conditions to unordinary tailgating or what not, i think you should test this for a week or so and update us. thanks for this thread though, very interesting.
lol McCain's energy plan to conflict Obama's tire inflation. " Get a walmart battery, raise ur mpg! "
Actually I waited 3 weeks before posting. Before I would get 26-27 on every single tank. After the battery I have gotten 28.3, 28.6, and 28.1.
I also used the same gas for the past 3 months, drive 70 with cruise control on the highway, and shift at 3100.
like the earlier poster said....it is probably the ecu thing
A dead battery can put alot of strain on an alternator = needs more power to turn, like AC...it's not totally far fetched..
A little off-topic here, but how long are the stock batteries supposed to last?
my stock battery lasted 4 years to the day.
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