Uploaded December 2021 | Updated September 2026, 3 weeks ago

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#vanlife #sprinter #vanconversion

For those of you who have a diesel vehicle, you most likely know what diesel exhaust fluid is, but for those of you who are wondering what DEF is, you should give this video a watch.

I give a brief explanation of DEF (diesel exhaust fluid) and then go over how you can replenish your empty DEF tank.

If you're just interested in how to fill your DEF tank you can skip to a 01:51.

If you're curious as to how much a 2.5gal box of DEF costs online, here's a link. P.S. It's usually cheaper to pick up in a gas station, hardware store, or auto store.

Diesel Exhaust Fluid : amzn.to/3mhYSsz

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00:00 Intro
00:09 What Is DEF?
01:51 How To Fill Your DEF Tank
03:25 Outro