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    Tundra Owners

    Does anyone else's gas tank seem to be growing as it ages? I have an 08 with the 5.7 and I believe it has a 26 gallon tank. When i first got the truck when the gas light would come one it would take around 21 gallons. At around 100k miles gas light would come on and it would take 23 gallons or so. 200k it was up to 25 gallons. I ran it out of gas twice when the gauge showed around 1/8 of a tank and the gas light wasn't even on. Yes, I am a grown *** man and i ran out of gas... twice. It was embarrassing. Both times after running out it took right at 25 gallons. I now fill up when i get just under 1/4 of a tank and havent seen the gas light in over a year. Today it took 26 gallons and the gas gauge showed just under a quarter of a tank at fill up. I swear its not leaking out anywhere. Whats going on? Maybe the fuel gauge is just inaccurate? Is the plastic swelling? Truck has around 220k miles and not a single issue other than this. The strange thing is i am getting more miles out of a tank of gas now than before. When the truck was new after a fill up it was show around 300 miles until empty. Now after a fill up it shows 350 miles until empty. Surely the tank isnt getting bigger... right? Any one else notice this at all?

    #2
    Have not noticed that but I only have about 56k on the truck.

    When the truck is showing empty it still has 6 gallons in it.

    Now twice I have filled up and the gas was stuck on empty for several miles until it creeped up to where it should have been.

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      #3
      It sounds like the tank gauge is starting to slowly die or something. I know the Tundra's have 26gal tanks but I talked to sales rep and he said all Tundra's gas tank lights come on when around 5-6gal remain. I know I have about 75 miles, at the max, left when mine comes on. I have to fill up every 3-4 days driving my 250 miles a week on my 08 CM 4x4. Sitting on 82,000 miles now and it still purrs like new.

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        #4
        I have a 2012. The gas guage is 5 gallons short on purpose methinks. So when you light comes on you actually have about 6 or 7. I noticed because I thought I had a 26 gallon tank but have never filled up more than 21 gallons and it was on E. My wife actually looked it up one day and read that they did it on purpose so you don't use the fuel on the very bottom of the take so you know you don't get sediment and stuff in your engine. Here is something else that we came across.

        Want to know why your new Tundra still has a lot of gas in the tank, even when the fuel gauge reads empty?

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