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42 answers

Depends on what type of engine you have fitted.

If it is a a'common rail' diesel then do Not run the engine as even a small amount of petrol will destroy the high pressure electronic injectors.

If it is one of the older type diesels, neat petrol will destroy the fuel pump seals and damage the injectors, BUT as you have a mixture that is mostly diesel, the wax lubricants are still in the system which will protect both pump and injectors.

Only you know how much petrol you have put in, if you are confident of the percentages quoted then you can still run the engine without any problems, just dont make it work too hard.

Worst scenario is drain what you can from the fuel tank and refill with fresh diesel, and bleed the fuel up to the pump - there is no need to flush the system unless a common rail system is used.

2006-08-26 23:34:38 · answer #1 · answered by rookethorne 6 · 0 0

Petrol In Diesel Tank

2016-10-03 04:09:31 · answer #2 · answered by ? 4 · 0 0

Putting petrol into a diesel tank is nowhere near as bad as putting diesel into a petrol tank. However, that said, don't start the car yet. Siphon the fuel from your tank, but don't worry too much if there is just a small residue in the bottom. Next, completely fill the tank with diesel. Now you should be OK to go.There is an argument by some that a small amount of petrol in a diesel tank actually enhances performance.

2006-08-24 21:53:33 · answer #3 · answered by »»» seagull ««« 3 · 1 1

This Site Might Help You.

RE:
I have put petrol into a diesel car. I have 3/4 diesel and 1/4 petrol in the tank. what should I do ?

2015-08-16 15:44:13 · answer #4 · answered by Anonymous · 0 0

If your car is a modern diesel, then you have potentially caused serious damage, all modern diesels work on a pressurised fuel delivery system i.e. PD (pump dusse). If you started the car and it ran then you may be lucky and only need to drain the tank and have the feul system flushed, several £100's...if you started the engine and it cut out as a result, sorry but several £1000's.
If you did not start the engine, well done, drain and flush the tank.

If you have an older diesel, say pre 1995/6, then you will have little trouble, keep filling with diesel to dilute the petrol and monitor any strange engine noises!

2006-08-24 21:52:28 · answer #5 · answered by G Man 2 · 0 1

I did the same with my dad's Land Rover you need to dilute it sufficiently so that you have more diesel than petrol then take a trip down a road with a load of humps to mix the misture up...should be okay

but at 3/4 diesel and 1/4 petrol that should be fine just kep an eye and an ear out for any strange noises/peculiar looking smoke etc...

2006-08-28 20:47:38 · answer #6 · answered by lyrical_g_muttley 3 · 1 0

If you are sure about the proportions and it's an older can - ie. not last 5 years, then just run the car as normal, topping up with diesel continuously as you go to dilute it further.

It WILL be harder to start, lower on power etc.

OR, preferably you could just drain the tank (syphon) and re-fill with diesel. Disconnect the feed for the fuel rail (get a container) and crank over the enhine to flush out the contaminated mix / change the fuel filter.

It WON'T cost you thousands, or even hundreds if you don't go to a main dealer.

2006-08-24 23:59:16 · answer #7 · answered by creviazuk 6 · 1 0

either add more diesel or suck the tank empty
I used to work for a major rental company and we had this problem manier times. As long as the mixture is not too thin
the engine should run fine(gasoline thins the diesel which is thicker 1/4-3/4 shouldn't cause problems) If you don't have fate however you can empty the tank. As long as it's not pure gasoline in the tubes it'll clean itself when you pump in more diesel.

2006-08-24 21:53:19 · answer #8 · answered by peter gunn 7 · 1 0

Drain the fuel tank and replace the fuel filter.Then fill up with diesel(you'll need to bleed the system).
If you run the engine for any length of time you could damage the diesel pump.Modern diesel pumps can cost over a $1000.

2006-08-24 21:48:02 · answer #9 · answered by Mark ABC 2 · 0 1

Using a narrow hose, siphon the tank out. Provided you have not run the car and, therefore, no diesel /petrol mix has been drawn into the system, you should have only a tiny amount of petrol left in your tank. Using petrol cans (don't move the car) refill your tank with diesel and repeat the siphoning. Your tank should be clean.

2006-08-24 21:58:48 · answer #10 · answered by scotsman 5 · 0 2

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