How many gallons of Def does a Denali Duramax use?

How many gallons of Def does a Denali Duramax use?

It used over 12 gallons of DEF in the last 2400 miles. 2200 of the miles were towing a boat (~10,000 lbs). I also am not getting any warnings. It goes from “OK” to speed will be reduced to 65 in x miles. I had to put 2.5 gallons in every 400 miles not he return trip home. Also no leaks in the system and no drop in power or performance.

Where can I buy Def fluid for my truck?

All DEF is the same, actually it is very tightly controlled. Best place for DEF prices is to buy it at a pump where the trucks by there’s. Buy in bottles and the price skyrockets. As for plugging in a lot depends on which oil you run, 5w-40 T6 is a lot more forgiving that 15w-40.

What does it mean when diesel exhaust fluid is low?

The warning light came on that the diesel exhaust fluid was low. I filled up he tank but I am still getting the … read more we had a message on the DIC that read def was getting low, we added def to full capacity.

How much Def fluid is under the back seat?

“yes sir we sure did”. 1500 miles later…999 message on the DIC. I will say this, there were 2 1gal jugs under the back seat. Because DEF is available at any WalMart and or parts store and truck stops, I don’t worry about the level. I just add 2.5gal when I get the 999 message.

It used over 12 gallons of DEF in the last 2400 miles. 2200 of the miles were towing a boat (~10,000 lbs). I also am not getting any warnings. It goes from “OK” to speed will be reduced to 65 in x miles. I had to put 2.5 gallons in every 400 miles not he return trip home. Also no leaks in the system and no drop in power or performance.

The warning light came on that the diesel exhaust fluid was low. I filled up he tank but I am still getting the … read more we had a message on the DIC that read def was getting low, we added def to full capacity.

How much Def fluid should I use per gallon of diesel?

You should use 1.25 – 1.5 gallons of def per gallon of diesel. if it gets 20 and only uses 1.25 def per 100, then 2000 miles/1.25gal def = 1600. Between 1200 and 1500 mpg seems to be the most commonly reported range for the LML. Since def usage is a chemical balance, the L5P usage should be similar.

Where can I buy Def fluid level check?

AKA bottom 30% of the tank. Buy DEF at Wally world cheaper there. They can’t seem to even get the new ones full when the do the pdi. Click to expand… So true. I even ask before I took the truck, “You did fill the DEF tank right?” “yes sir we sure did”. 1500 miles later…999 message on the DIC.