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Discussion Starter · #1 ·
This is driving me crazy<br>
A few weeks ago our tank aka mini van went into the shop for recall work. A few days later we got new tires and a got the oil pan fixed. It had a hole in it and was leaking oil. We also got a belt changed. Now I am getting 57 miles less per fill up then I was. I know I should be getting better gas mileage. I am still driving exactly the same. Anyone have any ideas. 57 miles do not seem like a lot but that is almost 3 gallons of gas at the prices here that is over $10 more that I am paying. It really hurts especially since we just spent almost $1K fixing it.
 

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Did you get the right size tires and are they at the right pressure? That can affect gas mileage quite a bit.
 

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Discussion Starter · #3 ·
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<div>Originally Posted by <strong>Stace</strong> <a href="/community/forum/post/10739841"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Did you get the right size tires and are they at the right pressure? That can affect gas mileage quite a bit.</div>
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Yes they are the right tires and the right preasure.
 

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My guess is that your tires are slightly larger than your old tires (perhaps just due to tread wear). Your gas milage is computed by the number of revolutions the wheels turn, assuming a certain diameter. If the new diameter is slightly bigger, you are going farther per revolution; you are actually driving the same number of miles per tank of gas, but the car is measuring fewer miles.<br><br>
Do you notice that you're filling the tank more often than before?
 

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Discussion Starter · #5 ·
Yes, I am going through gas like no tomorrow so I decided to figure out what my miles per gallon was. I was shocked. I thought my gas mileage would improve.
 

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I'd call the repair place and talk to them. The main things seem to be covered. One obvious thing... just to cover it <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/wink1.gif" style="border:0px solid;" title="wink1"> ... Are you getting your gas from the same place as before the repairs?<br><br>
We drive a Prius and have learned that every little thing actually affects gas mileage when comparing 45 to 55 miles per gallon...<br><br>
Outside Temperature<br><br>
Tire Pressure<br><br>
Hills<br><br>
and lots of other things that are unique to the Prius.<br><br>
Having repair work done so recently, though, is a red flag.<br><br>
Also, as silly as it sounds, double-check your math. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/wink1.gif" style="border:0px solid;" title="wink1">
 

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Discussion Starter · #7 ·
I did double check my math and also double checked it again at the next fill up. The only thing that has changed was all the repairs we had done. I am going to call tomorrow to see what gives.
 
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