THINK DIESEL "AUDIBLE" FUEL WARNING DEVICE THAT REMINDS YOU TO FILL WITH DIESEL

Great product!

Cheap and effective. Much cheaper than buying a new motor or even paying 20 Euros to have your fuel tank drained if you are lucky enough to remember you have a diesel car before starting up (speaking from experience). Note - in the winter months if you fill up at a dark petrol station the light sensor in this may not trigger. I thought my one didn't work until recently. Luckily the sight of a large yellow object on your fuel cap is also a help. The voice is annoying. It is meant to be. This won't fit on some cars. It was a challenge to fit it into my C4 Grand Picasso. They do show you the dimensions so go have a look how much space you have.

Took it out of the bag and battery was already flat Oh dear

Helpful

I bought this for my brother, who after owning a diesel car for 2 years accidentally put a couple of litres of petrol in his tank before he realised. I found this item on Amazon a bit too late. It took a bit of trial and error to fit it in a workable place, but my brother loves it and says it works well. The same thing won't happen again now, it is mistake that cost him just under £300 to drain and flush his tank and refill again.

Very useful to avoid a costly mistake!

Put this in my new car & it was great. However it lasted a week & no way of checking or replacing the battery. I bought one a few years ago & it was perfect.

I run a fleet of cars and despite a sticker on the dash, one on the outside of the fuel flap and one on the inside, people still manage to put petrol into our diesel cars! Since installing these, we've only had one misfuel. OK so it's a little bit embarrassing with it 'bing-bongs' and stern sounding gent warning you to put diesel in but if it saves you a whacking great bill then it's job done. The only thing I would say is that in isolation, they are loud enough but on a noisy petrol station forecourt they can be hard to hear. As i said, we still had one misfuel despite the warning being in place. They stick well on the inside of the flat - none have fallen off so far. They are light activated and seem to work well at night, even under dimmer forecourt lighting.