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Chevytrk15

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Everything posted by Chevytrk15

  1. Chevytrk15
    10 mpg is definitely rough. I appreciate all the input. My main thing is I just want to make sure there is nothing wrong with my truck. And I would like be to just know why and if upgrading the octane would do anything. If 93 would bring my mileage back up
  2. Chevytrk15
    I have done none of those. Truck is still bone stock. Thanks though I have done none of those. Truck is still bone stock. Thanks though
  3. Chevytrk15
    And in all reality I actually have to work just to get around 15 mpg. Not hard accelerating and keeping it around 65 mph
  4. Chevytrk15
    I have definitely been hearing about winter blend but if it was winter blend affecting my truck this much wouldn't my brothers truck be doing the same thing. And with the 121 octane. First where would I find that and does anybody else agree. Don't mean to question you but I've never heard that and I just don't want to take a chance of messing anything up. Thanks
  5. Chevytrk15
    I currently have 21k miles on the truck. I've gotten gas in different states just to see if the gas in my state to see if the winter blend is a factor. Still same mileage. The change started in September and wasn't cold. F it was a 1-2 mpg difference I wouldn't care too much. But 5-6 mpg is very different and costly. And my brother actually has the same exact truck and he is still getting 19 to 20 mpg. Thanks
  6. Chevytrk15
    I have had my 2015 Silverado 1500 crew 5.3 for the past year. One of the many things that I loved about my truck was the fuel mileage. I always averaged 19 to 21 mpg. I am usually driving about 65 mph. When I got my service done at 15000 miles at the dealership I started to see a drop in mpg. I have kept my eye on it and I have taken the truck in for another service and now 6000 miles later I am still getting anywhere between 15 to 16 mpg. Nothing I do changes it. Does anybody have any of an idea on why it is doing this. The dealership doesn't have an idea. Thanks
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