Diesel Only Fuel Door Decal, DEF Only Sticker Set for Truck Fill Point, Misfuel Prevention Fleet Vinyl Labels Any Size

The cheapest insurance on the truck. One misfuel costs more than decaling the whole yard.

What this prevents

Putting gasoline in a diesel tank, or diesel in the DEF filler. Both are expensive: a drained and flushed fuel system, a tow, and a truck off the road for days. On a DEF system it can mean replacing the pump and injector.

Why it keeps happening

Not because drivers are careless — because a rotating driver, a rental, or a yard hand fuels a truck they have not fuelled before, at night, at a pump where the handles are the same size.

What you get

DIESEL ONLY, DEF ONLY, NO GASOLINE, or your own wording. Sized from 2 inches up to 6 inches wide to fit the fill door or the filler neck surround.

Buy them in packs

Nobody orders one. Packs are priced so a whole yard costs less than one mistake, and they add nothing to shipping on an order you are already placing.

How it works

1. Add to cart and type your details in the text box above the Add-to-cart button.
2. We email you a proof, laid out to scale on a mock-up of your surface (send a photo of your door, window or truck and we lay it on that), usually same day.
3. You approve it. Then we cut. Nothing gets cut before you say yes.

Installs in minutes

Every decal ships pre-masked on transfer tape as one piece. Clean the surface, tape it in place, peel, squeegee, pull the tape off. Written instructions in every order.

Free digital proof (usually same business day). Free U.S. shipping. Ships 1–2 business days after proof approval from Las Vegas, NV.

Options

Pack Size	Set of 2 — one truck — $12.95 · 10 Pack — five trucks — $18.95 · 25 Pack — twelve trucks — $32.95
Size	2 Inch wide · 3 Inch wide · 4 Inch wide · 6 Inch wide
Wording	DIESEL ONLY · DEF ONLY · DIESEL ONLY + DEF ONLY · NO GASOLINE · Custom — I'll send my own