wigeon jim Posted June 14, 2021 Report Share Posted June 14, 2021 (edited) Hi , my brother in law has stupidly managed to put diesel in his petrol Vauxhall zafera, is there any way to drain the tank without dropping it out, we have a transfer pump, would it draw the fuel to the front through the fuel line? Any help appreciated, Jim. Edited June 14, 2021 by wigeon jim Quote Link to comment Share on other sites More sharing options...
Farmboy91 Posted June 14, 2021 Report Share Posted June 14, 2021 Did he brim the tank or just a splash? Quote Link to comment Share on other sites More sharing options...
scarecrow243 Posted June 14, 2021 Report Share Posted June 14, 2021 Hi look to see if the tank has a drain plug if not it will need to be drained another way if he started the car it will need cleaned thru out pipes etc etc people use to wash thru fuel system with parrafin spark plugs removed and spark off and a good few batteries to keep turning it over Quote Link to comment Share on other sites More sharing options...
harrycatcat1 Posted June 14, 2021 Report Share Posted June 14, 2021 Just now, Farmboy91 said: Did he brim the tank or just a splash? I was going to say if it's just a bit of diesel fill it up with petrol. I did this with an old Cavalier but might not work with the newer vehicles with fancy gizmos on. Quote Link to comment Share on other sites More sharing options...
Farmboy91 Posted June 14, 2021 Report Share Posted June 14, 2021 Just now, harrycatcat1 said: I was going to say if it's just a bit of diesel fill it up with petrol. I did this with an old Cavalier but might not work with the newer vehicles with fancy gizmos on. Yeah that was going to be my suggestion if it was an older motor. Quote Link to comment Share on other sites More sharing options...
harrycatcat1 Posted June 14, 2021 Report Share Posted June 14, 2021 Just now, Farmboy91 said: Yeah that was going to be my suggestion if it was an older motor. Just as a side issue, my old Mercedes ml handbook said to put a gallon of petrol into a full tank of deisel when it was severe cold. 😅 Quote Link to comment Share on other sites More sharing options...
ditchman Posted June 14, 2021 Report Share Posted June 14, 2021 should be a drain plug Quote Link to comment Share on other sites More sharing options...
GingerCat Posted June 14, 2021 Report Share Posted June 14, 2021 Can you disconnect the fuel filter and syphon off on pump without starting the engine? Replace filter after. The petrol will clean the pump after. Quote Link to comment Share on other sites More sharing options...
ditchman Posted June 14, 2021 Report Share Posted June 14, 2021 try this https://www.vauxhallownersnetwork.co.uk/threads/how-to-drain-tank-on-petrol-zafira-please.158832/ Quote Link to comment Share on other sites More sharing options...
wigeon jim Posted June 14, 2021 Author Report Share Posted June 14, 2021 (edited) Think he put £30 worth diesel into a 1/4 tank of petrol, also no hatch under seats to access fuel pump, also no drain plug Edited June 14, 2021 by wigeon jim Quote Link to comment Share on other sites More sharing options...
strimmer_13 Posted June 14, 2021 Report Share Posted June 14, 2021 17 minutes ago, harrycatcat1 said: Just as a side issue, my old Mercedes ml handbook said to put a gallon of petrol into a full tank of deisel when it was severe cold. 😅 I used to do that in my van just to clean the system after using veg oil for a few months. Quote Link to comment Share on other sites More sharing options...
harrycatcat1 Posted June 14, 2021 Report Share Posted June 14, 2021 So full tank is 12.8 gallons, if he put 30 quid of diesel in that's about 6 gallons so if he topped it up with petrol would it run with 50/50 petrol/diesel? Not sure, mine was less percentage when I did it. Quote Link to comment Share on other sites More sharing options...
strimmer_13 Posted June 14, 2021 Report Share Posted June 14, 2021 I wouldn't risk it. Most new cars would shut you down straight into limp mode anyway. Has he got aa or rac? I think they charge but cheaper than a garage bill Quote Link to comment Share on other sites More sharing options...
harrycatcat1 Posted June 14, 2021 Report Share Posted June 14, 2021 Don't suppose from all the comments that it's possible to shove a small plastic pipe down the filler to empty it? Or pull a pipe off under the bonnet connect a fuel pump and pump it out? Or does this just work on older cars? Quote Link to comment Share on other sites More sharing options...
snow white Posted June 14, 2021 Report Share Posted June 14, 2021 You can run a Diesel engine if you put a couple gallons of petrol in tank then dilute it with diesel but not the other way round petrol engines don’t like it for some reason Quote Link to comment Share on other sites More sharing options...
Rob85 Posted June 14, 2021 Report Share Posted June 14, 2021 Disconnect at the fuel filter, should be an in line filter, take out the fuse to the spark plugs then turn it over so it empties into a basin, problem is it will likely drain the battery. Another way is to lift the back seat and remove the sender unit from the tank and you may have enough space to take it out with an empty jam jar on a string. Thats how I had to remove 60 litres of diesel from a car one night... sad times Quote Link to comment Share on other sites More sharing options...
harrycatcat1 Posted June 14, 2021 Report Share Posted June 14, 2021 24 minutes ago, snow white said: You can run a Diesel engine if you put a couple gallons of petrol in tank then dilute it with diesel but not the other way round petrol engines don’t like it for some reason I've done it with an old car and it just run a bit rough but it ran. Quote Link to comment Share on other sites More sharing options...
oldypigeonpopper Posted June 14, 2021 Report Share Posted June 14, 2021 Hello, I would just put a plastic tube through the petrol cap till it reaches the bottom and suck out the first gob full 🤢 then let it drain into a large container, Quote Link to comment Share on other sites More sharing options...
Keith RW Posted June 14, 2021 Report Share Posted June 14, 2021 1 hour ago, harrycatcat1 said: Don't suppose from all the comments that it's possible to shove a small plastic pipe down the filler to empty it? Or pull a pipe off under the bonnet connect a fuel pump and pump it out? Or does this just work on older cars? manual vacuum pump same as used for oil changes might work, on the bay for about £25 and cheaper than the hundreds charged/quoted by other services, Quote Link to comment Share on other sites More sharing options...
harrycatcat1 Posted June 14, 2021 Report Share Posted June 14, 2021 15 minutes ago, Keith RW said: manual vacuum pump same as used for oil changes might work, on the bay for about £25 and cheaper than the hundreds charged/quoted by other services, Job sorted 👌 Quote Link to comment Share on other sites More sharing options...
wigeon jim Posted June 14, 2021 Author Report Share Posted June 14, 2021 Thanks, he has an electric transfer pump and was wondering if it would suck the fuel through the filter inlet from the tank? Quote Link to comment Share on other sites More sharing options...
rbrowning2 Posted June 14, 2021 Report Share Posted June 14, 2021 (edited) Check his car insurance he may find miss fuelling is covered in his insurance policy, I learnt this the hard way after miss fuelling and paying for a company to remove the mixed fuel from the tank etc, then many months later spotted it was covered by the insurance, like a windscreen. Edit to say the fuel tanks have an anti syphon / anti accident spill flap that has to be negotiated to be able to syphon the fuel out. Edited June 14, 2021 by rbrowning2 Quote Link to comment Share on other sites More sharing options...
ditchman Posted June 14, 2021 Report Share Posted June 14, 2021 torch the car and claim on insurance....do it over the phone using a thick eastern european accent............you will be fine Quote Link to comment Share on other sites More sharing options...
Keith RW Posted June 14, 2021 Report Share Posted June 14, 2021 16 minutes ago, wigeon jim said: Thanks, he has an electric transfer pump and was wondering if it would suck the fuel through the filter inlet from the tank? only if you can get the pipe down past any anti syphon gizmo that might be built into the filler neck, once had to do this with a tank full of petrol put in a megane diesel that got right to front door as it conked out, just made it back home on what was in fuel lines and filter, fortunately sender unit under rear seat, that was around 40K miles ago so must have been lucky that day. Quote Link to comment Share on other sites More sharing options...
wigeon jim Posted June 14, 2021 Author Report Share Posted June 14, 2021 Was talking about front end at filter inlet, Quote Link to comment Share on other sites More sharing options...
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