The Tankfreund.
Misfuelling protection for cars and vans.
A robust tab above the fuel cap that has to be lifted to refuel. Universal fit, fitted in 2 minutes, Made in Germany.
How the Tankfreund works
Impossible to miss
The Tankfreund hangs above the fuel cap. Whoever wants to refuel has to touch it.
Lift it and pay attention
Lifting it breaks the driver's routine and draws their attention to the fuel.
Compare
At the pump, the fuel name is right next to the nozzle, so picking up the wrong one is immediately obvious.
The right tab for every fuel
With the fuel names of the main European countries. An order can be split freely across the different fuels.

Red, for all diesel vehicles

Green, for diesel vehicles with HVO approval, on request

Yellow, for petrol vehicles

Yellow, for petrol vehicles with E10
Why the Tankfreund
Universal fit
For all common cars and vans.
Fitted in 2 minutes
Self-adhesive, no tools needed.
GTÜ-tested
Independently tested by Germany's GTÜ.
Made in Germany
Developed and made in Germany.
Abroad too
Fuel names for the main European countries.
For your own fleet or as a promotional item
Both are available unbranded or with your logo, from 50 units. The design work is included.

Stick-on Tankfreund
Ready to stick straight into your vehicles, so you can equip the whole fleet in one go.
- With adhesive pad, no card
- Can be split freely across the different fuels
- Fitting instructions at tankfreund.de/en/fitting-instructions

Tankfreund on a card
On a card with your message and the fitting instructions, to hand out to customers and members.
- Card in DL format (9.8 × 21 cm)
- Fits in any envelope, ideal as an insert in a mailing
- Card printed with your text and logo
Tankfreund specifications
- Fit
- Universal fit for all cars and vans
- Fuels
- B7 diesel · HVO · E5 petrol · E10 petrol
- Labelling
- Fuel names for the main European countries
- Material
- Fabric-reinforced PVC, flexible
- Size
- 7.6 × 12.55 cm
- Fixing
- Self-adhesive tab, above the fuel cap
- Testing
- GTÜ-tested
- Origin
- Developed, tested and made in Germany
- Patent
- Patent-protected



What our customers say
All 80 reviews · average 4.9The best protection against misfuelling
“Fantastic quality, feels very high-end and durable.”
Great invention!
“We have been using the stickers for 3 months now. They are still holding firm and stand out the moment the fuel flap opens. Simple and effective!”
Brilliant promotional gift
“Every customer of ours gets the Tankfreund. A brilliant promotional gift that sticks like glue.”
Test first,
then decide.
We will send you a few Tankfreund tags free of charge to try out.
- Free of charge
- In the fuel you need
- No obligation


