Very bad MPG...Please help...
Feb 13, 2007, 05:03 AM
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Very bad MPG...Please help...
The last 2 fill-ups, I've been averaging about 14-15 MPG. I usually average about 18-19, which I thought was low as it is, since I hardly drive the car hard. I drive about 50/50 (city/highway), I rarely hit 10+ PSI (maybe like 3 times a day), normally shift around 3-4K rpm's.
Mods are: TBE w/ HFC, Intake, MBC @ 23PSI, 255 FP, and Dyno Tuned by Sean Ivey.
I was thinking maybe an exhaust leak, but any other things I should be looking for? Any input would be greatly appreciated. Thanks in advance.
Mods are: TBE w/ HFC, Intake, MBC @ 23PSI, 255 FP, and Dyno Tuned by Sean Ivey.
I was thinking maybe an exhaust leak, but any other things I should be looking for? Any input would be greatly appreciated. Thanks in advance.
Feb 13, 2007, 05:10 AM
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It could could possibly be the winter blend of fuel being used. I have noticed a a fair drop in my gas mileage this season from the previous high 20's mpg I was getting. It also may also be a lead foot as well and you just not noticed.
Feb 13, 2007, 05:15 AM
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Feb 13, 2007, 05:30 AM
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Feb 13, 2007, 05:59 AM
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My mileage went down the craper lately as well. Could it be this unusually cold weather, i dont know. Typically i can acheive 20 mpg average, last two fill ups i'm under 15 as well. Car is bone stock and I have not changed my driving habits...
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Feb 13, 2007, 06:14 AM
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also how many miles on ur 9? r u using leaded race gas? the winter gas should be alil worse for mpg but not in such a huge margin... i'd swap out the o2 for good measure and maybe see if u can clean ur maf even
Feb 13, 2007, 07:38 AM
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I noticed this myself, so I talked with a local shop and they told me its a combination of the winter gas and the cold weather, he told me not to worry, when it warms up everything will be normal. I tought this was wierd having never been in a "cold" weather state, but hey, what you gonna do, drive slower
Feb 13, 2007, 07:46 AM
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The last 2 fill-ups, I've been averaging about 14-15 MPG. I usually average about 18-19, which I thought was low as it is, since I hardly drive the car hard. I drive about 50/50 (city/highway), I rarely hit 10+ PSI (maybe like 3 times a day), normally shift around 3-4K rpm's.
Mods are: TBE w/ HFC, Intake, MBC @ 23PSI, 255 FP, and Dyno Tuned by Sean Ivey.
I was thinking maybe an exhaust leak, but any other things I should be looking for? Any input would be greatly appreciated. Thanks in advance.
Mods are: TBE w/ HFC, Intake, MBC @ 23PSI, 255 FP, and Dyno Tuned by Sean Ivey.
I was thinking maybe an exhaust leak, but any other things I should be looking for? Any input would be greatly appreciated. Thanks in advance.
