DEF addative
I'm thinking about getting a Sprinter RV and have ? about this additive called DEF or DIF. What's the general cost per gal.? How much dose it hold? How often do you have to fill it up? Plus any ot...
Forum Discussion
Any DEF you can buy meets the manufacturers' requirements. It is only urea in solution. It degrades over time and with exposure to sunlight. I avoid any problems by getting it at the pump at the truck stops where it is cheaper than getting it in a plastic jug and I know when I leave that the DEF tank is full. Some Shell gas stations are putting DEF pumps in the same area as the diesel pumps and these pumps use smaller DEF nozzles which is a big plus.
DEF is consumed as diesel is burned. My truck burns one gallon per 750 miles with a heavy load and without a load it averages around 1000 miles per gallon of DEF.
Best not to store DEF as it has a shelf life of 6 months or less and if you buy it at an auto supply store it may have sat there for a month or longer as well.
DEF is consumed as diesel is burned. My truck burns one gallon per 750 miles with a heavy load and without a load it averages around 1000 miles per gallon of DEF.
Best not to store DEF as it has a shelf life of 6 months or less and if you buy it at an auto supply store it may have sat there for a month or longer as well.
