What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Misfuelled my Hyundai i30 diesel with petrol - should I drain the tank?

I got distracted this morning and put just over two litres of V-Power petrol into my Hyundai i30 diesel before I realised. There was already about a quarter of a tank of diesel in the car. I stopped and filled up with V-Power diesel and it seems to be running ok. I have done about 15 miles. Will I have done any long-term damage? Do I need to drain the fuel out and start again? The car has done about 10,000 miles.

Asked on 27 April 2013 by PW, via email

Answered by Honest John
The petrol will float on top of the diesel. Keep filling up with high lubricity V-Power until the petrol disperses. This could take well over 1000 miles, but 2 litres is a small amount so you should be okay. Just never let the tank get low so the fuel pick-up sucks in petrol rather than diesel. Happily it’s now impossible to misfuel all new Fords, together with many Citroens, Hondas, and BMWs.
Similar questions
Is it usual for a belt tensioner to go off centre and shred the belt? This was the case with our Peugeot 3008 at 28,000 miles.
I've been told the following about my Zafira by a vaxhuall garage: Fault on inlet manifold and noisy on initial start up –suspect internal swirl flaps have collapsed and possible engine damage Vehicle...
Six weeks ago I made a bad judgement and drove through deep water in my Peugeot 306 the car cut out and I’ve been told that the engine has suffered hydrostatic lock and the rods are bent. With a car of...
Related models
Good quality interior, very efficient engines, excellent value for money, good reliability record, plenty of equipment as standard.
 

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 12% on GAP Insurance

Use HJ21 to save on an ALA policy

See offer