I don't have to buy DEF often as we have a 16 gallon tank (235 gallon fuel tank). I want to ask those of you who buy DEF at the truck island, do you find that the fuel handle constantly cuts off? It will allow me to put in about 3/10's of a gallon then cut off. Sometimes the handle won't allow me to start after 5-6 clicks. I have to repeat and repeat until it's full.This has been my experience since I started buying DEF, doesn't matter which fuel station. I just want to know if it's just me or are these fuel pumps quirky.(please, hold your comments that you are glad that you don't have to buy DEF) ThanksSafe travels,MM.

I have a similar experience, but I find that filling the tank slower helps.

Haven't had an instance where it clicked off before the tank was full. I usually forget to set the ignition key to accessory when I get out and my DEF gauge isn't working when I add DEF. I fill the DEF tank slowly with my finger on the trigger, so to speak, and don't let the pump go on "automatic". -G

I have only used a pump once to fill the DEF tank. It was at a Flying J and it worked well.

I thought that maybe the magnetic top of the DEF tank could be causing it to stop...without that magnet working right, it wont allow the pump to keep going....I'm grasping at straws Mark, but I do know if that magnet is not right, it won't let the switch on the pump start the DEF....

Some pumps don't have the magnet and you have to go inside and ask the clerk for it.

DEF (diesel exhaust fluid) | Good Sam Community

lanerd
Explorer II
Aug 09, 2015
Two Hands wrote:
I have only used a pump once to fill the DEF tank. It was at a Flying J and it worked well.

Hummmm... same here. No problem at all.

Ron
Travlingman
Explorer II
Aug 09, 2015
Some pumps don't have the magnet and you have to go inside and ask the clerk for it.
bullydogs1
Explorer
Aug 09, 2015
I thought that maybe the magnetic top of the DEF tank could be causing it to stop...without that magnet working right, it wont allow the pump to keep going....I'm grasping at straws Mark, but I do know if that magnet is not right, it won't let the switch on the pump start the DEF....
Two_Hands
Explorer
Aug 08, 2015
I have only used a pump once to fill the DEF tank. It was at a Flying J and it worked well.
GMandJM
Explorer
Aug 08, 2015
Haven't had an instance where it clicked off before the tank was full.

I usually forget to set the ignition key to accessory when I get out and my DEF gauge isn't working when I add DEF. I fill the DEF tank slowly with my finger on the trigger, so to speak, and don't let the pump go on "automatic".

-G
Sooboy
Explorer
Aug 08, 2015
I have a similar experience, but I find that filling the tank slower helps.

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