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diesel in petrol car

tracey.g Avatar
8y, 1m agoPosted 8 years, 1 month ago
hi other half just put diesel in petrol car will we have to drain it or what will happen if we put more petrol in it. he 13 quid in diesil in
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tracey.g Avatar
8y, 1m agoPosted 8 years, 1 month ago
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#1
need to be drained asap. hopefully your partner didn't drive it because that will cost you!
#2
What ever you do dont drive the car, if you put more petrol in it then you'll just be wasting more money as you will also contaminate the new stuff. You'll need to get the car towed to the garage.
#3
drain it straight away. you'll clog all the lines and filters and god knows what else
#4
I'd defo drain it with that quantity in, If it was a couple of quids worth then you could water down by filling the tank and it would give off quite a bit of black smoke for a couple of days untill it's burn away..
#5
Fill it up to the neck now with petrol and if possible rock the car to get it to mix a little and it should be fine, it may splutter a little for a short while, but no real damage done
#6
if the car's an old heap, it should drive ok, if it's new or worth anything, drain it.
#7
will damage the cat converter if driven. Is a costly job if you get a garage - only some registered with CEPA to dispose of fuel. Can diy if you pull off the fuel line and let the pump do the pumping out - with ignition on but you'll need a big container and find a method of disposal.
Good luck. Won't damage engine though. If it's an old car with no cat - you can drive it but will be smokey till diesel is used up. That's my opinion anyway fwiw
#8
I would fill it to the brim with petrol now, it should dilute the diesel OK, the worst scenario is it may smoke a bit, once the tank is half empty again, fill it up with more petrol.

You should be OK.

Fortunately £13 doesn't buy much diesel these days.
#9
Drain and steam clean it - there's a risk otherwise that you'll end up with a 4 digit bill if it's a reasonably modern car
#10
You definitely have to drain it from the car. If you are in the AA you should call them. Do not drive the car. I used to run petrol stations and this was the advice that we were told to give anyone who had done this. Good luck.
#11
have you heard of red ex? most garages sell it. you add it to fuel to clean the engine. i think you may be able to put some off that in. hope thats off some help.
#12
This happened to my parents (or there friends) car when I was a kid and it apparantly ruined the car.

Act on it immediately and whatever you do.......don't drive it!
I'd recommend draining it but diluting it may work with some pollution.

Give your other half a slap from me. :giggle:
#13
dmccabe
Fill it up to the neck now with petrol and if possible rock the car to get it to mix a little and it should be fine, it may splutter a little for a short while, but no real damage done


Agree.
#14
I think a lot of the replies are missing the point of damage to the catalyser or catalyctic converter. Once it is contaminated by burning diesel the car will almost certainly fail the "emissions test" of an mot test and call for a new "cat" to be fitted - that can be really expensive especially if it's a 4 x 4 or a beemer. If undriven - drain it.

It's a bit different if you put some petrol in a diesel car but only if a small quantity. Anyone else back me up?
#15
Lornypops
Agree.


a slap he is in the hospital as we speak lol
#16
need to put pen.15 butter in there, will counteract the diesels effect
#17
i did the same, fill it with petrol to the brim. worked a charm.
#18
oxter
I think a lot of the replies are missing the point of damage to the catalyser or catalyctic converter. Once it is contaminated by burning diesel the car will almost certainly fail the "emissions test" of an mot test and call for a new "cat" to be fitted - that can be really expensive especially if it's a 4 x 4 or a beemer. If undriven - drain it.

It's a bit different if you put some petrol in a diesel car but only if a small quantity. Anyone else back me up?


Yes there is no chance of diluting this. He has put around 10 litres even if you fill the car full of petrol it will still be running 20% diesel. As the diesel wont be burnt the hydrocarbons and cleaning agents in the diesel will just ruin your catalyst at best but also may damage your piston seals.At worst it will wreck your engine.
#19
Inactive
Fortunately £13 doesn't buy much diesel these days.


That's the first thing I thought :lol:

Diesel in a petrol engine isn't actually that bad. Do it the other way round though and it's a new engine for sure. Deffo try to empty the tank of as much as you can though.
#20
The lambda sensor won't like it much. The diesel nozzle is a lot larger than petrol, can't have been particularly easy to do it.

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