Put Petrol in a Diesel Car in Drymen? Don't Start It
Don't turn on your engine. If the fuel is still sitting in that tank and the motor has not yet been started, a drain is nearly always all it needs — and that's settled in the next few minutes, not by how much got in. Petrol in Diesel drains and cleans misfuelled cars where they are, throughout Drymen and the remainder of Stirling, on the forecourt, at the roadside or on a driveway. Our technicians will show you what your next part is. Ring us — that goes ahead of all else.
Petrol in a diesel: what to try first
- Whenever you drive, your pump and the fuel injectors suffer. That's why you do not fire it up, and why you never rely on it once it has started. The thing about petrol in a diesel in particular — the bit people get wrong — is that it drives off fine for the first mile or two. Diesel in a petrol engine generally will not run at all, which stops the person and stops the harm with them. This one lets you keep going.
- Turning your ignition on commonly primes that system, and priming is what carries petrol out of that tank then into your pump and injectors. Those are the parts diesel keeps lubricated on its way through, before it burns. Petrol manages the burning and none of the lubricating. Leave the car's ignition off.
- Do not water down it. Diesel tipped on top removes nothing, so all you get is more of what was already there, since percentage is not how a diesel fuel system handles petrol. Super unleaded? Still petrol. The octane makes no difference.
- Sit tight if it's safe to. Hazards on, engine off, keep it. Wherever you have stopped — the verge on Old Gartmore Road, anywhere — an odd location for us is better than a started diesel, and nothing is quicker for us to sort than a car that never shifted.
- Before you phone, gather your whereabouts. Anything closest to you with a name on it, plus a postcode that starts G63 0 — that's what decides whether our van turns up or circles.
- Three replies determine your whole job: the fuel you put in, the approximate quantity involved, and whether anything has been going since. Our line is 0333 366 0103.
At the forecourt: draining petrol from a diesel
Forecourts are where the job usually kicks off, and where a large portion of it finishes. Still at Lomond View? Then that is generally where it takes place. Station forecourts are routine for us, with the consent of the site.
At a forecourt, this gets halted with the motor never fired, and nowhere else does that. We can still deal with it where it stands, even away from the pumps. In a car park, on a driveway or in a lay-by, your car has been switched on and moved there, and that sucked fuel through the fuel filter then into the high-pressure fuel pump, all the way from the tank. None of that is a catastrophe, though the flush then has to go past your tank to the lines and the filter, and the few seconds between reading the receipt and going for your key are what settle that.
The staff will normally offer to push the vehicle out from the petrol pump so the next driver can get past. That's worth doing. Moving the car four lengths doesn't merit starting the motor.
The difficult part is that bay, not your fuel. Cars either side of you, a trolley shelter behind, and occasionally a height bar on the way in that decides if a van can get to you at all — so when you call from a car park like the one outside Co-op Food, mention how much clearance there is around you and which way round the car is. Those our engineers attend often. Should there be no space to work next to the diesel Mercedes C-Class, it gets moved with your engine off, and not out of fussiness over a couple of seconds of running: priming occurs at every start, more of the blend departs that tank for the pump, and two shunts into a roomier bay have gradually made a worse job of what was simply a motor sitting still.
You'll be told to shift the car out of that gateway and fix it later. Please don't. On the zig-zags by the local primary school, a wrongly fuelled Vauxhall Astra running on diesel is in the way, and that's all it is. Crank it three more times being helpful and you have turned a tank into a fuel system: every start primes the lines, every prime drags more petrol past your filter towards your pump. Let them grumble. Phone us.
Three replies decide most of the work: what got in, approximately how much, and whether your engine has run since. We ask for those answers as soon as we reach your car in the car park outside The Clachan Inn. Then the polluted mixture comes out of that tank, the fuel lines are cleaned, and where your Audi A6 has a serviceable filter, it comes off. After clean diesel is in and the fuel system primed, our technicians fire it up and make sure it runs smoothly before you pull away.
Pull in somewhere sensible, switch off then ring us. Happy on the way out to Drymen Show Field, flat on the way back? Then look at that tank. Petrol thins diesel; runnier fuel leaks past the tightly fitted parts that build injection pressure; and the farther the diesel Peugeot 208 went, the less of that pressure it held.
Fixed and starting aren't the same thing, and the difference is your circuit: our engineers flush it, and take the filter off where there's a working one. Compare that with the confident tip you will get — drain the car, refill with clean diesel. Half right. Do precisely that to a diesel Volvo XC60 close to Drymen Library and it will start, which is exactly why the tip sounds plausible. Then your engine sucks the petrol left behind in the filter, and in the feed lines, straight back through the pump, as draining a tank does nothing whatever about fuel that has already left it. Phone us instead.
Places we cover in Drymen
Being a rural village, Drymen gets a routine visit, whilst the villages close by come along on the same run: Shandon and Buchanan Smithy, Buchanan Castle and Badshalloch, Tullycross.
If yours isn't on that list it does not mean we never come — there are pages for nearly all places in Stirling, and the ones named above are simply the nearest neighbours. Assuming is the mistake to skip, especially on the border or anywhere the satnav gets lost. Contact us and ask.
See the map for the area included here. Our technicians work at the roadside, at forecourts, on driveways and at car parks across all of it, and the car never needs to move to us.
Stuck by the roadside anywhere in Drymen?
Not everybody gets the opportunity to pull over somewhere sensible. Hazards on at a lay-by somewhere, or stopped on the verge on Balmaha Road because you realised after setting off — our engineers take that call often enough that it is the usual kind.
Out of your car when it isn't safe to be inside, beside it when it is. It will often oblige. A diesel running on petrol limps along quite willingly, and that's the trouble: start it up to get to somewhere safer and the mixture goes further into the system with every mile driven. However tricky the spot, it is no bother for us to get to it, and that's much better for the vehicle than driving on.
Petrol in a diesel, but your car has rolled
Here is where the local M8 comes in, under 15 miles away from Drymen. Some distance along, and onto it in the first place: a misfuelled diesel will often do both before anything feels wrong. What you get then is rarely a clean stop. Power drains away, your idle turns uneven, and there may be smoke.
The next safe exit is the one to take. Turn off there, and leave the restarting alone. Long drive? Anything approaching the under 25 miles to the closest city and you should presume the lot — filter, pump, injectors, all of that reached by the contamination. Say that on the phone, as it alters what goes in our van.
About Drymen
Drymen is a village in Stirling, situated inland at an elevation of 52 metres, and is located near the towns of Shandon and Buchanan Smithy. Drymen lies approximately 16 miles northwest of Glasgow, and its population of around 976 people reside predominantly in detached housing. Drymen is also close to Buchanan Castle, a notable landmark in the area. Drymen's rural setting and relatively small size contribute to its quiet, residential character.
What follows when our engineers arrive with you around Drymen
- Our engineers find out what got in, how much, and whether the engine has run. The responses shape the work, which is why we ask before pricing.
- Your tank is cleared of everything.
- Fuel lines are rinsed through and your filter cleared, leaving nothing in your system that caused any of this.
- Clean diesel goes in, and then your system gets primed.
- Your engine is turned on and tested to confirm it runs smoothly on new diesel.
The vehicle is then ready for you to pull away. Permanent damage is very unusual when it has been caught quickly, and because all of it is done where the vehicle is, it never has to be taken to a workshop.
Drymen AdBlue removal is a different problem
AdBlue rather than petrol? Then the opening instruction is unchanged — the motor remains off — while the issue beneath it's a separate one altogether. Petrol does two things to diesel: weakens it, and strips out the lubrication the fuel system depends on. Urea dissolved in water, AdBlue, and in a diesel tank that leads to rust and deposits.
AdBlue removal around Drymen has a page of its own with the full story on it, including why it's often the more significant of the two. Our technicians deal with both.
Drymen pricing for a petrol-in-diesel fuel drain
Our engineers can't put one number on this page frankly, since the job is not one job. What moves it:
- This is the big one: whether your engine has been run, or driven.
- How much of the wrong fuel went in, compared with how much the tank holds.
- Whether it was petrol or AdBlue.
- Whether our van can safely reach your vehicle and work on it, which hinges on where the vehicle is.
Tell us the car, the amount and if it has run, and you will get a clear answer instead of a range. For your car at home that is going nowhere and is not pressing, works too.
Petrol in diesel: everyday queries in Drymen
Fuel drains on a Drymen petrol station forecourt
Yes, and it's where a large share of this work takes place. Tell us which one you're at when you ring and we will tell you whether we can work there. With the station's consent our engineers attend another forecourt nearby and the other forecourts locally routinely.
Is there a sensible quantity of petrol in a diesel?
Proportion decides it rather than litres — and more than either, whether the engine has run. Five litres into a nearly dry tank isn't five into a full one, no. But both land on the same query in the end: has that blend been sucked right through, or has it not?
I drove the vehicle after putting petrol in my diesel. What next?
Stop safely. Off. Nothing after that. Not restarting it is the single most helpful thing available to you now. Driving does move the trouble out of that tank then into the pump and injectors, yes, and it stays fixable far more frequently than drivers fear.
Will a fuel drain void my warranty?
A manufacturer's warranty survives a drain and flush done to a proper standard, which is no alteration at all. An argument over a warranty is likelier to come from running a diesel on petrol — so leave it switched off.
Can I just add two-stroke oil and drive home?
No. Two-stroke oil is an old remedy for a distinct problem and it does not replace what petrol has thinned. Your tank still has petrol in it later on, and the pump still has to live with it.
Does petrol in a diesel have to go to a main dealer?
You don't need one. Your car is drained and flushed wherever it is, with no need to bring it to a main dealer.
You, and the car, still together?
Keep the car switched off.
If you have already driven it, pull over somewhere safe, turn it off then leave it off. This is recoverable from a lot more commonly than motorists expect, and a still, cold motor is the best place to be in.
At the kerbside, on the forecourt or at home — call-out fuel draining around Drymen and across Stirling.