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  #1  
Old 01-07-2008, 02:39 PM
If it aint a CAT itsa DOG

 

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fuel MPG drop!!!

The last 4 to 5 weeks i have noticed that my truck is only averaging about 13.5 mpg. This is on the calc, i don't have a lie o meter. I was averaging around 15.7 before. Nothing has changed in this time period. Same driving habbits, same trip to work and back, same outside air temp, etc. The only 2 things that were different was that i took off my tonneau cover to go pickup my camper and i also switched to the white winter bottle of power service, instead of the grey summer bottle. Those are the only 2 differences. Could the power service change my mileage that much from the 2 different bottles? Fuel filter was just changed 2k ago. Oil is in good shape, not rising like i'm getting fuel in the oil. No extra smoke, truck runs fine just like always. Coolant was a little high, but thats because i added a bottle of additive and never drained any coolant to make it equal. Any ideas guys?
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  #2  
Old 01-07-2008, 03:05 PM
If it aint a CAT itsa DOG

 

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Old 01-07-2008, 03:13 PM
Almostdunfukinwidit


 

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Its the winter blend fuel Dan. Since it got colder the fuel got more winterized = worse mpg
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Old 01-07-2008, 03:17 PM
If it aint a CAT itsa DOG

 

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Dave do you think since the beginning of Dec, the fuel changed that much? Man if so i know a place where i can still get #2. The truck stop that i fuel up at has polar diesel and #2. I will have to try that. I just thought the blended stuff was at its peak, cause it was very cold in Dec. Thanks for the help Dave!
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  #5  
Old 01-07-2008, 03:21 PM
Almostdunfukinwidit


 

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Im pretty sure it has since we got down to zero for a couple weeks. my mileage got worse too
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Old 01-07-2008, 03:48 PM
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you may have got #1 and not just a #2 blend. #1 sucks for mpg's but is great for not jelling up.
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  #7  
Old 01-07-2008, 04:02 PM
If it aint a CAT itsa DOG

 

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yeah i know #1 is good for antigel but i run powerservice winter additive in it anyways so i'm gonna try #2 on my next fill up and see how it goes.
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