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MPG and Valve Adjustment

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Old May 14, 2007 | 09:08 PM
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MALSR's Avatar
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Default MPG and Valve Adjustment
Will adjusting valves that were out of tolerance improve fuel economy? I'm now getting much better gas mileage unless it has something to do with the warmer weather.
 
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Old May 14, 2007 | 11:14 PM
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JimBlake's Avatar
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Default RE: MPG and Valve Adjustment
It's mostly the weather. Valves out of adjustment have a relatively weak influence on economy.

Also, most cities are done with winter-blend gasoline now.
 
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Old May 16, 2007 | 12:52 AM
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YeuEmMaiMai's Avatar
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Default RE: MPG and Valve Adjustment
I didin't notice any improvement in MPG after getting valves adjusted. I did notice an inprovement when I replaced my t-stat that was stuck pen.
 
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Old May 16, 2007 | 07:58 AM
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Default RE: MPG and Valve Adjustment
Yeah...that would certainly have an impact, since the engine never gets up to temp...
 
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