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Old 03-29-2023, 03:11 PM   #37
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
DEF

Quote:
Originally Posted by rohrmann View Post
DEF will have no impact on power or fuel mileage because it is injected into the exhaust stream just ahead of the catalytic converter, not into the engine. It works with the converter to reduce oxides of nitrogen in the exhaust.
Not trying to be a S.A., but since that is the case, why can't I just use something like ammonia water (?) in the DEF tank ? I will continue to buy DEF at the truck stops - never had an issue - but just wondering .

Max
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Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
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