60K maintanance/ mpg issue
I just changed my oil about 300 miles ago, im currently at 58.700 miles. so i see according to the manual i should do a spark plug change and a trans flush in addition. can either of those two things affect my gas milage??? Driving like an a$$ is behind me, im really trying to be conservative but somehow im just barely gettin 25 ave. mpg (mainly city) I would think with my intake/exhaust combo my gas milage would be somewhat decent but, its not. Anybody have any thoughts on what could be affecting my gas milage that bad (im not even meeting the city average according to the company of 28 mpgs)
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Looking at my maintenance schedule and it shows nothing about performing either of those services at 60,000 miles. Who did these services and are you sure they used the correct fluid and more importantly did they use the correct gap and heat range for the plugs.
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http://www.scion.com/assets/pdf/xD_m...ceguide_08.pdf
At 60K miles all that is recommended is an oil change, rotation, and air filter replacement. |
could run some techron through it to see if that would help. cant hurt.
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Sounds like something is hurting it somewhere. I know EPA estimates of 28 mpg mean nothing becuase that is also average some people may get more some less. But I haven't heard of anyone getting that low. When I drive the car. Driving like I want to go fast :) i still get 28 to 31 avg depending. (MPG Guage shows 30 to 34.)
How is your filter? Clean or really dirty? Does it seem to be driving fine, i.e. no loss in power? I would pull each plug and check it. Maybe one of the plugs is going or has gone out. |
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Did you change to a different size tire? What makes you think the plugs are the cause of your problem? You can pull the plugs if you want and check for gap widening and discoloration.
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i would think that if the plugs were your problem, you'd see issues elsewhere instead of just your gas mileage.
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If you drive with the the climate control temp knob set to extreme left of right, that triggers the a/c to come on. Same if you have the defogger on. Second, have your alignment checked. I have discovered mine is way off as the inside tread blocks were completely worn away after one summer. Nice since I have been complaining about how the car likes to drift left to right and back.
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well i have 205/55/16 right now and my gas milage is actually decent now idk what the problem was or maybe there was none at all. im averaging 27.5 mpgs all city as for the warming up the car i usually wait 2-3 minutes before i drive off or until the green temp light goes off. alignment was just done not to long ago. i dont see any probs for right now.
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If you still have issues, I think you should rethink your acceleration techniques. I used to have issues with my MPG only averaging out roughly 28-30 MPG but since I trained myself to drive more smoothly with the MPG AVG option showing on the dash. It helps me train my mind into driving a bit more calmly. Now I average 33 easily if I don't gas it hard at all, while still maintaining 65-75 MPH. |
Driving habits will affect your gas mileage the most..
If your engine is running smoothly and no CEL being thrown.. then your plugs are most likely fine.. You might try a different brand of gas... This can affect mileage quite a bit.. especially if the percentage of ethanol is higher.. which varies among batches. The oil companies also change the mixtures when the season change for warmer weather and mileage tends to drop some.. |
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