AdBlue in a Diesel Tank in Preston Crowmarsh: Why It Occurs and How to Prevent It
If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and your ignition off then ring 0333 366 0103. Around Preston Crowmarsh, finding it before the engine turns normally leaves a drain and a full flush where it stands. Reading in advance? Then the rest explains how it happens and what to stop it ever happening.
AdBlue in a diesel motor, and its separate tank
Not one fluid but two: that is what plenty of modern diesels around Preston Crowmarsh and Crowmarsh Gifford run, with diesel for your engine. Stored in a tank of its own, AdBlue is fed into the exhaust stream and cleans it.
There's a filler on every tank. On a lot of vehicles the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. Diesel goes in at each forecourt visit, week in, week out. Someone who has to stop and work out where it goes normally fills the AdBlue side, from a bottle, and far less frequently. It is in that gap that the mistake happens.
Preston Crowmarsh: how AdBlue in your diesel tank occurs
It is hardly ever carelessness. Three things tend to line up.
First, the warning. Low AdBlue brings a warning from the car, and letting it run dry means limp mode — hence a hurried top-up, maybe before work off A4074, or outside The Three Horseshoes on the way home after work.
The old car's filler is where your hand goes — yet a hire car, a new motor or a company car puts the fillers somewhere else. That's the second factor: a new car.
Nothing halts the tip after it has started, because a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. Whether it happens in Benson or the middle of Preston Crowmarsh, it's the same few seconds.
Which filler is for AdBlue, and which for diesel?
Whether a Preston Crowmarsh forecourt or a driveway out in Roke, take a couple of seconds on these before any goes in.
- Read the cap instead of going by position: AdBlue caps are commonly blue or marked "AdBlue", and diesel ones usually aren't.
- On plenty of cars, the size gives it away: AdBlue gets the smaller filler neck.
- The flap. Look inside your fuel flap for a label. Many cars say there which fuel goes where.
- The handbook shows where it lives if your filler is not next to your diesel cap: the boot, or under the bonnet.
- Whoever had it before knows. Check when you pick up a hire car or company car — at Cholsey's car park, perhaps — not once the light appears.
How to top up without AdBlue in your diesel tank
For the day the light appears — anywhere it is around Oxfordshire — a routine to follow.
- Switch off after you park — flat ground, engine stopped, and never rushed beside Saxon Court at the roadside.
- Silly as it sounds, saying "AdBlue" out loud while you unscrew the cap works — after you've found the filler and read the cap.
- Leave your diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle.
- Stop once that tank is topped up or the bottle runs dry; before that, tip gently using the own spout.
- Before starting your car, shut the cap and look a second time that the diesel cap never opened off.
Stop there if you find, at step two or three, that you've already poured into your diesel side. Never go on to step five.
Preston Crowmarsh: already put AdBlue in the diesel tank?
Do not start your motor: that is where the short order of things starts. The fuel pump runs on many diesels the moment your ignition is switched on — so leave it off. Diluting it with more diesel won't work, since AdBlue settles to the bottom instead of blending — and that is where the fuel is sucked from.
If you are at a forecourt, whether it is the BP or the Esso, ask the staff to help roll your car clear of the pump. Your own driveway in Preston Crowmarsh is where it should stay.
Already run? Stop when it's safe, then switch off. Preston Crowmarsh sits under 10 miles from the M40; there, take the first junction. Roughly how far did it go? Crossing Preston Crowmarsh is smaller a job than a run of under 15 miles towards Oxford, so say.
When we get there around Preston Crowmarsh, what occurs?
Wherever your car came to rest, be it outside Benson Church of England Primary School, near Saint Helen or at home, our van comes to it. Our technicians ask what went in, about how much, and whether it has run, because the replies settle this work and the price. You get that quote on the phone, before anyone heads out.
Draining that tank comes next, then a full flush of the system. With AdBlue that counts more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own. After the filter has been flushed — or replaced, if needed — clean diesel goes in, and finally the car gets tested. Next our engineers start the engine and make sure it runs correctly before leaving.
Unstarted cars usually need a half-hour job after the moment we arrive. The kit is safe on a busy forecourt, and quiet enough for a residential street late at night. No money upfront; you settle up that day. Afterwards, the VAT invoice and a report from the engineer go to you for the insurer. Before we get there, have a look at your policy; many include cover for misfuelling.
About Preston Crowmarsh itself
Preston Crowmarsh is a village situated on the River Thames in Oxfordshire, with a population of around 893 residents. Preston Crowmarsh has a mix of old and new housing, but predominantly features detached homes. Preston Crowmarsh is located near the towns of Benson, Rokemarsh, and Wallingford, and is approximately 11 miles from Oxford. Preston Crowmarsh sits at an elevation of 49 metres above sea level, in a scenic riverside setting.
AdBlue drains in Preston Crowmarsh and across Oxfordshire
Over OX postcodes, our vans that cover Preston Crowmarsh — a village — work the nearby spots too, Wallingford and Rokemarsh included. Quickest of all: quote a OX10 6 postcode for our van.
Shifting your car is not necessary. We drain it where it is — a side street close to Benson War Memorial, a lay-by on the way to Wallingford Castle Meadows, a drive. Guessing doesn't help behind Benson Library, close to a boundary, or somewhere hard to describe; phone and check.
For Preston Crowmarsh motorists, the short version
First, the cap; after that, the tip. If AdBlue has gone in your diesel tank anyway, leave the vehicle off and call 0333 366 0103. Petrol in Diesel drains it where it stands, anywhere around Oxfordshire.