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why does my truck use more gas now???

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Old Feb 23, 2011 | 06:12 AM
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why does my truck use more gas now???
Hello,
I just recently put on a thrush muffler and now my gas mileage has decreased. The pipe size is the same, so why am I using more gas?
 
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Old Feb 23, 2011 | 07:00 AM
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Right foot getting heavier to hear the new sound?
 
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Old Feb 23, 2011 | 07:32 AM
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Winter gasoline blends yield poorer mileage. Have you really checked it lately?
 
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Old Feb 23, 2011 | 08:00 PM
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Lots of variables here...
 
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Old Feb 24, 2011 | 06:31 AM
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winter
 
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Old Feb 24, 2011 | 10:48 AM
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From: missing Texas...
Originally Posted by avfrog
Lots of variables here...
x2
 
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Old Mar 3, 2011 | 02:49 PM
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i havent been driving it any different than before the muffler. What if the muffler shop put it on backwards?
 
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Old Mar 3, 2011 | 08:35 PM
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A chambered mufflers installed backwards would perform poorly, but you would be very easily able to hear the audible error first off the bat.
 
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Old Mar 3, 2011 | 10:23 PM
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Chambered mufflers perform poorly anyway! haha
 
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Old Mar 4, 2011 | 09:56 AM
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i got my truck running on just the 4 cats and she gettin 14. 8 mpg...im happy lol
 
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Old Mar 4, 2011 | 11:30 AM
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Originally Posted by avfrog
Chambered mufflers perform poorly anyway! haha



The magic of Reversible Buttplug Technology


MGD
 
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Old Mar 4, 2011 | 02:55 PM
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Originally Posted by MGDfan


The magic of Reversible Buttplug Technology


MGD
that's a turbo, not chambered
 
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Old Mar 4, 2011 | 03:39 PM
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Originally Posted by nw150
that's a turbo, not chambered
It's a POS Thrush - I ain't picky

Besides - it's still got silly non-straight-through internals: http://www.thrushexhaust.com/pdf/thrush.pdf

BUT - Reversible, I see. So, change the labels to:

Bad --> <---Just As Bad



MGD
 
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Old Mar 4, 2011 | 03:43 PM
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yea, had to point it out though. lol, turbo is the last style i'd buy no matter the company
 
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Old Mar 4, 2011 | 06:02 PM
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Originally Posted by avfrog
Chambered mufflers perform poorly anyway! haha
Why do chambered mufflers perform so poorly?
 
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