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    Fuel mpg lly???

    I've been told that winter blend diesel will make you get less mileage
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    Fuel mpg lly???

    mpg I hope I'm in the right section to post this question. Anyway here goes, I bought this truck brand new, it's a 2007 and 1/2 new body with dpt. I removed the dpt and the cat and installed a 4 inch system from turbo back. I then bought a quadzilla tuner and installed the +50hp tune with no...
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    Proper fluid in the Allison

    Thanks for the reply....cheers!
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    Proper fluid in the Allison

    I'm not sure anyone has stated in this whole thread???What's best in a stock alli pulling a 32 foot travel trailer it's whole life. Someone please cause I'm going back on the road in a couple days and would like to switcth to synthetic if it's safe
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    Duramax woes

    OK, I'm the new kid on the block(stupid). I bought a quadzilla stealth 2 for my 2007 and 1/2 Duramax and at same time I bought a turbo back exhaust system. I did all this to increase my fuel mileage, because I have a diesel part. filter. Well installing the exhaust system went smooooth enough. I...