Petrol in Diesel engine.
Posted: Fri Dec 28, 2007 9:06 pm
I have been on holiday and I leant my car (2.2 Hdi Coupe) to my brother whilst I was away. Unfortunatley he has put 20 litres of petrol in the tank (he has a petrol car and did not notice till it was too late)
. He has driven the car a 1/4 mile with no obvious signs of problems. When he started it the next day (at this point only realising his mistake) he noticed some rough sounding idling. There is some pretty confusing advice in various places on the net. I have the following 2 options:
1. Drain the tank, fill with Diesel, add injector cleaner and cetane booster and pray everything is fine. Or..
2. Pay to have the fuel system stripped and cleaned.
Obviously option 1 is cheaper. The info I have found so far suggests that the diesel is a lubricant for the fuel pump and that petrol will strip this away resulting in damage to the pump. Given that it has not ran for any significant period can I assume that the pump is not damaged and go for option 1. If not option 2 may need a new fuel pump and possibly a new engine depending on the condition of the pump.
Anyone had any experiance with this that they can share?
Learning point for everyone. NEVER LEND YOUR COUPE TO ANYONE. EVEN FAMILY !!

1. Drain the tank, fill with Diesel, add injector cleaner and cetane booster and pray everything is fine. Or..
2. Pay to have the fuel system stripped and cleaned.
Obviously option 1 is cheaper. The info I have found so far suggests that the diesel is a lubricant for the fuel pump and that petrol will strip this away resulting in damage to the pump. Given that it has not ran for any significant period can I assume that the pump is not damaged and go for option 1. If not option 2 may need a new fuel pump and possibly a new engine depending on the condition of the pump.
Anyone had any experiance with this that they can share?
Learning point for everyone. NEVER LEND YOUR COUPE TO ANYONE. EVEN FAMILY !!
