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GM Diesel capless filler plug — image 1
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GM Diesel capless filler plug

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I almost put DEF in my fuel tank the other day, so I thought I needed something to slow me down a little when refueling.

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Category
Automotive
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Went to fill my DEF tank the other day and stuck the DEF nozzle right in the cap-less filler for diesel fuel.  Fortunately, I caught myself before I was forced to learn an expensive lesson.

 

I thought a plug to go in the capless filler hole might force me to take a second to think before sticking a nozzle where it doesn't belong.

 

I printed this out of TPU, and it fits snugly.

 

I'm not sure if the vent hole is necessary, but thought it was better than not having one at all.

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