Diminishing Gas Mileage

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  #1  
Old 11-17-04, 12:06 PM
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Join Date: Jul 2004
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Diminishing Gas Mileage

I have a 1994 Chevy G30 Van. V8, 350 engine, 120k miles. My gas mileage seems to be decreasing. I used to get at least 400 miles per 30 gallon tank of gas. Now I am lucky to make it to 350 miles per 30 gallon tank. I just had the water pump, power steering pump replaced and a complete tune-up. The tune-up did help something because I had previous failed the emission check and after the tune-up I passed the emissions.

Any other areas I can check for gas mileage issues?
 
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  #2  
Old 11-17-04, 04:13 PM
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Join Date: Apr 2002
Location: Pittsburgh,Pa
Posts: 2,417
Air pressure,alignment or a brake dragging could cause a drop in economy.Try a different brand of fuel and see what happens.You have only dropped 1.5 mpg so the areas I said may increase it back up more than that.Actually you may be driving it a little harder testing the new tune up causing the loss also.I've seen it happen many times and people don't even realize they are doing it.
 
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