Help! I just bought a used G and it gets 9 MPG!
#1
Help! I just bought a used G and it gets 9 MPG!
Something must be wrong, I know you might argue "oh you drive like a maniac" but lets not get into that, I filled up my tank with the correct premium gas, drove carefully not going above 3-4k RPMs for about 80 miles, then refilled the tank and calculated 8.9 MPG. wtf. I get around 23 on the highway, but 8.9 in the city? Something must be wrong with this car. Am I screwed?
my mechanic checked out the sensor levels and they were all correct, so maybe a sensor is broken? or is something mechanically wrong? oil levels maybe?
my mechanic checked out the sensor levels and they were all correct, so maybe a sensor is broken? or is something mechanically wrong? oil levels maybe?
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Time for a Tune up? Dirty air filter can cause drop in MPG.
Also filling up after only 80 miles probably won't get an accurate reading with the calculation method. Best to average it out over time on fill-ups (meaning 1/4 tank or below). Time of day, temperature, different gas pumps all affect when the pump thinks your tank is full. So if you're basing 8.9 off this one fill up, I'd try again after a full tank of gas.
Also filling up after only 80 miles probably won't get an accurate reading with the calculation method. Best to average it out over time on fill-ups (meaning 1/4 tank or below). Time of day, temperature, different gas pumps all affect when the pump thinks your tank is full. So if you're basing 8.9 off this one fill up, I'd try again after a full tank of gas.
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TimAUSTRALIA (07-17-2023)
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That totally sucks. I sympathize, this must be so frustrating. I will try to help make it as painless as possible, but no guarantees...
Anynigma's easy 6 step method to restoring fuel economy.
1) Check Air Filter, if dirty, replace
2) Check Spark Plugs, if dirty or large gap, replace
3) Reset ECU
4) Reset Idle Throttle Body Position and Accelerator Pedal Position.
5) Clean Throttle Body
6) Take it to a trusted shop and say wtf
DIY's or posts with useful info can be found via search.
Anynigma's easy 6 step method to restoring fuel economy.
1) Check Air Filter, if dirty, replace
2) Check Spark Plugs, if dirty or large gap, replace
3) Reset ECU
4) Reset Idle Throttle Body Position and Accelerator Pedal Position.
5) Clean Throttle Body
6) Take it to a trusted shop and say wtf
DIY's or posts with useful info can be found via search.