--- title: Seatown: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/seatown-aberdeenshire-ab45-2/ location: Seatown county: Aberdeenshire latitude: 57.685680 longitude: -2.687420 service: AdBlue in a Diesel Tank updated: 2026-10-04 --- # Why It Happens and How to Prevent It: AdBlue in a Diesel Tank in Seatown If AdBlue is already in your diesel tank, stop reading for a moment: leave the engine and your ignition off then phone 0333 366 0103. Around Seatown, finding it before the motor runs usually leaves draining and a full flush on the spot. The remainder of this page covers why it happens and how to ensure it does not — handy if you are reading ahead of time. ## Why does AdBlue in a diesel vehicle need its own filler? No single fluid but two: that's how plenty of newer diesels near Seatown and Boyndie run, with diesel feeding the motor. AdBlue's own tank keeps it, and from there it is sent to your exhaust, and there a spray treats the gas. Each tank has its own filler. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. Diesel gets filled on every forecourt visit, again and again. Much less frequently, the AdBlue side gets topped up — normally from a bottle, by someone thinking about where it goes. It's in the gap that the slip lives. ## AdBlue in the diesel tank around Seatown: how it happens Carelessness rarely causes it. What does is three things lining up together. The warning comes first. As AdBlue runs low the car tells you, and if it runs out completely, your vehicle drops into limp mode. So the top-up is done in a hurry: on a driveway off Shore Street before work, or in the car park outside The Shore Inn on the way home. The old car's filler is where your hand goes — yet a hire car, a new vehicle or a company car puts the fillers somewhere else. That's the second thing: a new motor. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the tip after it has started. Whether it occurs in Portsoy or the middle of Seatown, it's the same few seconds. ## Telling the AdBlue filler from the diesel filler Before you tip anything, whether on a drive in Brodiesord or a forecourt in Seatown, check these. They take a couple of seconds. - Check the cap rather than going by position: AdBlue ones are regularly blue or marked "AdBlue", and diesel caps usually are not. - Look at the size: the smaller filler neck is, on plenty of motors, the AdBlue one. - Lift the flap and look for a label — plenty of vehicles show what belongs in each filler just there. - In the boot or under the bonnet: that's where your filler is if it is not by your diesel cap, and the handbook tells you which. - Collecting a hire or company car, say at the car park outside the nearest station? Ask whoever drove it last before leaving, rather than when the light goes on. ## How to top up without AdBlue in your diesel tank The day the light goes on, wherever around Aberdeenshire, use this routine. - Stop somewhere level, motor off, with time to spare — not hurried on the side of Schoolhendry Street. - Say "AdBlue" out loud as you unscrew the cap, once finding the AdBlue filler and read it. Daft, perhaps, yet it does the trick. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave the vehicle on. - Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty. - Before starting the vehicle, close the cap and check again that the diesel cap never opened off. Find at stage two or three that it has already gone into your diesel side? Then stop right there. Skip step five entirely. ## Put AdBlue in the diesel tank around Seatown already? Then the order of things is short. Don't start the motor. The fuel pump starts on plenty of diesels as soon as your ignition goes on — so keep it off. Filling up with diesel won't dilute it: rather than mixing, AdBlue sinks to the bottom of the tank, right where the fuel is drawn from. If you're on a forecourt, whether it's the the nearest petrol station or the another forecourt nearby, ask the attendants to help roll your car away from the petrol pump. Leave it where it is if you're on your own driveway around Seatown. If your engine has already run, stop as soon as it is safe then switch off. Leave the M90 — over 50 miles out of Seatown — at the first exit. A short hop across Seatown is a smaller job than a run towards Aberdeen, under 50 miles away, so tell us about how far it went. ## Our arrival around Seatown, and what occurs next By the local primary school, near Portsoy Salmon Bothy or on your own driveway: wherever the vehicle has stopped, we come to it. What liquid went in, the amount, and if it ran: our technicians ask since those replies set the work and quote. You hear that price by phone, before anyone sets off. The fuel system is then purged thoroughly, once your tank is drained. Unlike petrol, AdBlue forms crystals and eats at some fuel-system metals, and none of that washes away unaided. Hence it matters more. After the fuel filter has been flushed — or replaced, where needed — clean diesel goes in, and then the car gets tested. We don't leave until it has been started and is running correctly. Unstarted vehicles usually mean a half-hour job after the moment we arrive. The equipment is fine on a busy forecourt, and hushed enough for a residential street after dark. Paying happens on the day, not upfront, and you receive the paperwork an insurer wants: an engineer report and a VAT invoice. Misfuelling cover is included in plenty of insurance policies — and so use the wait to check yours. ## About Seatown Seatown is a small suburban area situated on the coast of Aberdeenshire, with a population of around 1097 people. Seatown sits at an elevation of 19 metres, looking out to the North Sea, and is located near the towns of Portsoy, Sandend, and Fordyce. Seatown has a mix of housing types, but semi-detached homes are the most common. Seatown is about 43 miles from Aberdeen, the nearest city, and 439 miles from London. ## AdBlue drains across Aberdeenshire, Seatown included Seatown is a residential suburb, and our vans that cover it also work the places near it, Sandend and Fordyce among them, across the AB postcode area. Quote a postcode that starts AB45 2, and the van arrives quickest. Your car stays where it is. Draining happens on the spot, be it a driveway, a street by Peaky Blinders Memorial, or a lay-by on the way to Wally Green. Ring and ask rather than assuming if you are near a boundary, or somewhere hard to explain, like the back of Institute Hall. ## Seatown drivers: the short version First, the cap; then, the tip. Petrol in Diesel drains it where it stands, anywhere in Aberdeenshire, if AdBlue has gone in your diesel tank regardless — and so leave the vehicle off then ring 0333 366 0103.