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Discussion Starter #1
Happened to be next to a Pilot and noticed their DEF pump lines were empty. Just at 10K and I filled it again. It took 4.6 gallons. The only other time I filled it was around 5K and it took 4.4 gallons.. My math says 9 gallons for 10K miles with about 2K of that towing. So...I now know I can figure about 1,100 mpg on the DEF.

There's more. Second time I used a bulk pump. First time there were no issues. This time I pulled the handle on and got a DEF shower. Ended up holding the handle in just a bit to find a flow rate that did not kick back. Did that until it clicked off. Tried to fill more and each time it clicked off. There IS a flapper in the filler to help retard the kick-back. Did not help much for me. I got wet and so did the truck.

Now, if you do not have a filler cap on your fuel filler that means you WILL get DEF splashed into your fuel filler. Not good. Not good at all. Especially since you will not be able to get it out.

I'm ugly, not stupid.. I have a filler cap.

That DEF on my hands turned the skin a bit white or it left a white deposit on the skin when it dried. I near immediately closed both caps up and poured water from the washer sponge on the windshield scraper. Scraped the stuff with that water.

After returning home I washed and waxed where the DEF spilled. No damage I can see. Hand still feels a bit "tingley". Washed the heck out of it a couple times so far. No skin stain evident now.

In summary, 1,100 mpg DEF. Slowly start filling using the bulk truck nozzle. Cover your fuel filler nozzle with a cap.
 

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The trials and tribulations of the modern diesel driver. The lone nomad lost in an endless sea of crossover and sport utili-tee

;)
 

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Great feedback, thanks for this. I would have ended up doing exactly the same thing! Oh, I already have a cap.
 

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Discussion Starter #5
I'll add another interesting little issue. I swear after filling and on the ride home, the DEF gauge was right at the full line but no more.


Took the truck for a 40 mile ride to run errands and visit my boat at the marina. Noticed the DEF gauge is now past that full line.


Beats me.
 

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Discussion Starter #7



Most did not get that factory shipping cap. It was often removed at the dealer. I, like many, bought one of these magnetic caps.
 

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Discussion Starter #9
Sure you can ask.


I just don't have the answer.


Someone on another forum was selling them back in March. Many of us bought. Also heard they were being sold on Ebay. Check there.


Close as I can remember they were about $40 as advertised. When I bought in a "group buy" it was a bit less.
 

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'14 Ram EcoDiesel Aluminum Green DIESEL Fuel Fill Cap-Geno's Garage

do a search in google you can find a few places selling them


Source: http://www.ram1500diesel.com/forum/ram-1500-diesel-accessories/801-new-fuel-tank-cap-9.html

"Although the custom Green Diesel fuel cap is sweet looking, I found a decent alternative for $3.00 at home depot.

It has a thick rubber gasket on the inside that spreads out as you tighten down the wing nut. No water or debris can enter!!

Oatey 1-1/2 in. Plastic Mechanical Test Plug-33400 at The Home Depot"
 

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Sort of off topic but I was surprised how cheap the DEF was a Flying J on my trip a few weeks ago at $2.69 gal. I had looked at the stuff at my local auto store and it was $14.99 for a 2 Gal jug of the blue stuff. Needless to say I skipped the store and bought on the road
 

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Good thread, I have only filled mine up 3 times with diesel and that cap is a piece of crap. I don't understand how we can pay such a price for a truck and get something so cheap.
 
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