WTF is going on?
06-08-2010, 12:42 PM
#5
Staging Lane
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Alot can mess with mpg, the engine running noticably rougher? I mean we can sit here and speculate lol but can't really narrow anything down tyl you look into it more :-)
06-08-2010, 02:12 PM
#7
LS1Tech Administrator
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I gotta argee with the guys saying that we don't have enough info.
Almost anything can cause poor MPG. If you have no other symptoms besides gas mileage, then start with the basics and go from there (basics meaning even as simple as tire pressures, as mentioned above).
Almost anything can cause poor MPG. If you have no other symptoms besides gas mileage, then start with the basics and go from there (basics meaning even as simple as tire pressures, as mentioned above).
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06-08-2010, 07:24 PM
#12
I agree. Proper maintenance is a must!!
New Plugs
wires
air filter
fuel filter
Clean the MAF (MAF cleaner sold at most parts stores i.e. O'Reilly's, etc)
O2 sensors could also be going bad. Have the car scanned for those. they can get expensive but you really only need the front two.
Tire pressure helps more than you'd think
Think that's about it. Depending on the mileage on your car, I would replace all fluids as well. Tranny, rear, motor oil, and coolant. Those don't really affect your gas mileage, but a properly maintained vehicle is less likely to cause problems down the road. If after all of that you still experience bad mpg's then you either need to reevaluate your driving habits or have a tuner look at it.
New Plugs
wires
air filter
fuel filter
Clean the MAF (MAF cleaner sold at most parts stores i.e. O'Reilly's, etc)
O2 sensors could also be going bad. Have the car scanned for those. they can get expensive but you really only need the front two.
Tire pressure helps more than you'd think
Think that's about it. Depending on the mileage on your car, I would replace all fluids as well. Tranny, rear, motor oil, and coolant. Those don't really affect your gas mileage, but a properly maintained vehicle is less likely to cause problems down the road. If after all of that you still experience bad mpg's then you either need to reevaluate your driving habits or have a tuner look at it.
06-09-2010, 12:47 PM
#14
TECH Enthusiast
Thread Starter
I agree. Proper maintenance is a must!!
New Plugs
wires
air filter
fuel filter
Clean the MAF (MAF cleaner sold at most parts stores i.e. O'Reilly's, etc)
O2 sensors could also be going bad. Have the car scanned for those. they can get expensive but you really only need the front two.
Tire pressure helps more than you'd think
Think that's about it. Depending on the mileage on your car, I would replace all fluids as well. Tranny, rear, motor oil, and coolant. Those don't really affect your gas mileage, but a properly maintained vehicle is less likely to cause problems down the road. If after all of that you still experience bad mpg's then you either need to reevaluate your driving habits or have a tuner look at it.
New Plugs
wires
air filter
fuel filter
Clean the MAF (MAF cleaner sold at most parts stores i.e. O'Reilly's, etc)
O2 sensors could also be going bad. Have the car scanned for those. they can get expensive but you really only need the front two.
Tire pressure helps more than you'd think
Think that's about it. Depending on the mileage on your car, I would replace all fluids as well. Tranny, rear, motor oil, and coolant. Those don't really affect your gas mileage, but a properly maintained vehicle is less likely to cause problems down the road. If after all of that you still experience bad mpg's then you either need to reevaluate your driving habits or have a tuner look at it.
haha! 
