Selling your classic car? It's FREE to list your car on Honest John Classics | No thanks
I accidentally put seven litres of petrol in my diesel Rover 75 - will I get away with it?
I stupidly started to fill my Rover 75 diesel with petrol. I realised after about seven litres and stopped with the tank just above a quarter full. I filled up the rest with diesel and drove the six miles home. The tank is 65 litres capacity, so my question is what should I do? Should I have it drained or will I get away with it due to the relatively small quantity?
Asked on 24 July 2018 by Harrovian
![](http://images.honestjohn.co.uk/imagecache/file/pad/120x120/media/11545716/keith-polaroid.jpg)
Don't feel stupid. Motoring organisations reckon misfuelling happens every three minutes with up to 150,000 cases a year. You can usually get away with up to 10 litres of petrol in a 60-litre tank, so you should be okay. But you should fill up with high-lubricity premium diesel and keep doing exactly that. Don't allow the tank to be more than half-empty for about 2000 miles. At first, the petrol will float on top of the diesel and won't get sucked into the low-level fuel pick-up before dispersing into the diesel fuel.
Tags:
misfuelling
classic cars
Similar questions
![](http://images.honestjohn.co.uk/imagecache/file/pad/75x75/media/16477727/537450_458533677529584_1473549666_n.jpg)
After fitting a new battery, my little Morgan 4/4 started ok after hibernation. But it's not running sweetly and I put it down to tired petrol; 3/4 full and at least nine months old. What shall I do?
![](http://images.honestjohn.co.uk/imagecache/file/pad/75x75/media/10703009/david-polaroid.jpg)
I put petrol into my diesel, Freelander 2. I realised at the pump and called a fuel removal service who sucked out the petrol. After a month of intermittent staring issues, the garage diagnosed that there...
![](http://images.honestjohn.co.uk/imagecache/file/pad/75x75/media/10703035/dan-p-polaroid.jpg)
My son has a 5 year old diesel car and told me that he had a half tank full (about 28 litres) of premium diesel in it and then went to top up to full but accidentally put about 4 litres of petrol in. After...