bad gas mileage
#1
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Join Date: Oct 2008
Location: San Jose, CA
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Car Info: Subaru WRX Impreza
bad gas mileage
hey guys, i'm currently pretty much stock on my 03 wrx. i have an SPT intake and stage 1 with the cobb access port. question is, i'm getting TERRIBLE gas mileage, and i don't know what i could be. I'm thinkin bad spark plugs?
#6
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All good questions that that I didn't think about. I'm gonna do a small test and see how many miles to the gallon i'm getting. I'm "guessing" like 15 to the gallon or less. I'll put $20 and it'll be gone in 2 days. So i'll get back to everyone shortly.
#9
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Then where else do i put it? Doesn't fuel have to do with the engine?
But what's done is done, don't get all butthurt that I put it in the "wrong" section. Seems like you're the only one that cares, everyone else is trying to help so thanks for your pointless effort. Good day.
But what's done is done, don't get all butthurt that I put it in the "wrong" section. Seems like you're the only one that cares, everyone else is trying to help so thanks for your pointless effort. Good day.
#13
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Here is an accurate way to calculate gas mileage.
1. Go to your favorite gas station.
2. Pump gas, noting the notch that you selected for fuel delivery rate. Some pumps have two notches. Valero usually has three notches. Also, remember the pump you used.
3. Let it fill the tank completely and click off by itself. Don't add any more gas.
4. Reset your trip odometer to zero.
5. Drive the car in your normal style until the tank is near empty.
6. Go back to the same gas station and go back to the same pump.
7. Pump gas using the same notch (delivery rate) you selected before.
8. Let it fill the tank completely and click off by itself. Don't add any more gas.
9. Divide the mileage from your trip odometer by the number of gallons you pumped.
10. You now have your MPG.
1. Go to your favorite gas station.
2. Pump gas, noting the notch that you selected for fuel delivery rate. Some pumps have two notches. Valero usually has three notches. Also, remember the pump you used.
3. Let it fill the tank completely and click off by itself. Don't add any more gas.
4. Reset your trip odometer to zero.
5. Drive the car in your normal style until the tank is near empty.
6. Go back to the same gas station and go back to the same pump.
7. Pump gas using the same notch (delivery rate) you selected before.
8. Let it fill the tank completely and click off by itself. Don't add any more gas.
9. Divide the mileage from your trip odometer by the number of gallons you pumped.
10. You now have your MPG.
#14
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Then where else do i put it? Doesn't fuel have to do with the engine?
But what's done is done, don't get all butthurt that I put it in the "wrong" section. Seems like you're the only one that cares, everyone else is trying to help so thanks for your pointless effort. Good day.
But what's done is done, don't get all butthurt that I put it in the "wrong" section. Seems like you're the only one that cares, everyone else is trying to help so thanks for your pointless effort. Good day.
#15
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Join Date: Apr 2007
Location: brentwood CA
Posts: 3,567
Car Info: 2015 SWP WRX
Here is an accurate way to calculate gas mileage.
1. Go to your favorite gas station.
2. Pump gas, noting the notch that you selected for fuel delivery rate. Some pumps have two notches. Valero usually has three notches. Also, remember the pump you used.
3. Let it fill the tank completely and click off by itself. Don't add any more gas.
4. Reset your trip odometer to zero.
5. Drive the car in your normal style until the tank is near empty.
6. Go back to the same gas station and go back to the same pump.
7. Pump gas using the same notch (delivery rate) you selected before.
8. Let it fill the tank completely and click off by itself. Don't add any more gas.
9. Divide the mileage from your trip odometer by the number of gallons you pumped.
10. You now have your MPG.
1. Go to your favorite gas station.
2. Pump gas, noting the notch that you selected for fuel delivery rate. Some pumps have two notches. Valero usually has three notches. Also, remember the pump you used.
3. Let it fill the tank completely and click off by itself. Don't add any more gas.
4. Reset your trip odometer to zero.
5. Drive the car in your normal style until the tank is near empty.
6. Go back to the same gas station and go back to the same pump.
7. Pump gas using the same notch (delivery rate) you selected before.
8. Let it fill the tank completely and click off by itself. Don't add any more gas.
9. Divide the mileage from your trip odometer by the number of gallons you pumped.
10. You now have your MPG.
I know that when I was getting really bad gas mileage it was because my front o2 sensor was going bad, that might be it and that might not be it too. If you feel its your spark plugs, then change them. Maybe check you air filter as well and give that a good clean up. But it could also be that you have a heavy right foot. There are a lot of factors to choice from.
Also check you PSI in your tires, thats gotten me bad MPG as well. Hope that helps