Quote:
Originally Posted by Last2Die
Question for those with the 2020 duramax. Just towed for the first time, and man this thing guzzles def. anyone experience this..?
Tony
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Yes, the new one's do use more than the previous 2017-2019. I have 3000 miles on mine and I had to add 5 gallons of DEF. This seems to be the norm and it uses more when towing. I'm on the Diesel Place forum and others have stated the same on DEF usage in the new truck.
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2019 Keystone Montana 3560RL, 2020 Chevy 2500 HD, Firestone airbags, Air Lift wireless compressor, Curt gooseneck, 20K Reese Goosebox, TST-507, USMC combat vet & retired LEO. Robert, Anika, Breanna, Dylan (daughter-in-law Stephanie). & our Great Pyrenees Layla
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