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dirtymax44 01-16-2010, 07:57 PM before and aftermarket parts my truck would average 15 miles to the gallon. after installing the edge juice with attitude and 5in straight pipe. egr blocked and fingered. afe dry filter and averaging around 13.8 miles to the gallon why is this?? i thought i would be getting better than 15 with these adds KevinsDMAX 01-16-2010, 08:04 PM I would cut off the edge juice and run a tank and see what your MPGs are. I have a PPE and people talk about how it improves MPGs but I didn't see anything. Randy_the_Hack 01-16-2010, 08:06 PM What size wheels/tires are you running? If they're larger than stock, you're likely getting better mileage than you think... Tanc Crusher 01-16-2010, 09:18 PM If your comparing to say summer fuel and now running winter blend fuel that can be a cause for your difference. Yes like mentioned remove the Edge and see if mileage returns. Then try the Edge running full tanks on a single level. Some may be better than others for mileage. Brian Timmy2500 01-16-2010, 09:21 PM How heavy in the foot are you with the mods? Just saying its easy to give her more with out even thinking about it dirtymax44 01-17-2010, 01:04 PM thanks for the posts.. will the winter blend fuel decrease the milage by that much? rustback 01-17-2010, 01:41 PM thanks for the posts.. will the winter blend fuel decrease the milage by that much? hell yeah. winter blend is like a bad case of sh!ts. everything goes down the toilet. jd2210 01-19-2010, 10:17 AM I'm quite new to the world of Duramax but I'm finding they really like Howes additive. I have been consistantly getting 16us MPG (actual) with the additive in there and we have been well into the -30's this month. Before the additive I was at 11. (I also covered the front end a lot more and that helped a lot as well) buckshot1224 01-19-2010, 10:28 AM Heavy foot? Are you hand calculating your MPGs? Mods can screw with the DIC mpg. Winter fuel? Driving style in general? My mods are listed below and last weekend on a 175 miles round trip averaging 52 mph (according to GPS) I got 18.2 mpg (hand calculated). My mods are similiar to yours. chevyman_2000 01-19-2010, 10:32 AM how long is your drive to work? In the cold it takes forever to get upto operating temps if it even does. Put on your winter front and you'll see a difference. If you don't want to use it I'll take it off your hands and buy u a free tank of fuel :D chev. | ||