Petrol in a diesel in Dundee: the first ten minutes
The first thing to do in Dundee is nothing at all: engine off, handbrake on, then 01295 380724. Sitting in the tank with the engine off, petrol does nothing at all. It has not reached the filter, the pump or the injectors. Talking it through with one of our engine scientists, fuel-system engineers and misfuel specialists costs nothing, and the drain itself takes 45 to 90 minutes once someone is on site.
Starting the engine is the single decision that changes both the outcome and the cost.
Figure 01 — Mechanism
What petrol does in the diesel tank
Petrol is a solvent and diesel is a lubricant, and the high-pressure pump and injectors are lubricated only by the fuel passing through them.
Once the engine runs, petrol strips that lubricating film within minutes. Metal-to-metal contact in the pump sheds fine swarf, and the swarf travels forward into the common rail and the injectors.
Drivers in Dundee conceal this more often than they report it — the same study found embarrassment keeps incidents quiet, which is why every published prevalence figure is probably an undercount and why nobody should feel singular about it.
Petrol in a diesel in dundee: the worst case
A seized high-pressure pump with debris through the rail is the expensive ending: pump, injectors, rail, lines and tank all replaced.
Covering Dundee
Dundee covers DD1, and a unit attends any of them. A junction number works as well as a postcode if you are on a main road rather than a forecourt.
| Contamination | Petrol into the diesel tank |
|---|---|
| Area | Dundee |
| County | East Scotland |
| Postcodes | DD1 |
| Risk if the engine has run | High |
| Consultation | Free of charge, no obligation |
| Time on site | 45-90 minutes |
| Attendance | 24 hours, usually same day |
| Helpline | 01295 380724 |
What you will notice
Knocking or rattling under load, white or grey smoke, a sharp loss of power, and a restart that takes longer each time. Many vehicles run for a mile or two before the fuelling fault appears, which is exactly why the median distance driven is 1.5 miles.
What a technician does in Dundee
The tank is pumped out, the feed line and filter housing flushed, a new fuel filter fitted and clean diesel put in. If the engine ran, the high-pressure pump is checked for scoring and the rail for metallic debris before the vehicle is released.
Roughly a third of callers are told they do not need anyone dispatched at all. That is a better outcome than a sale, and it is why the call is free.
Figure 02 — Triage
How bad is it? Answer one question
Petrol in a diesel car behaves differently depending on one thing only: how far through the fuel system it has travelled.
Figure 03 — Escalation
- TankThe wrong fuel is sitting still. Nothing downstream has touched it.
- Lift pumpTurning the key runs the in-tank pump, and the contamination starts moving.
- FilterThe filter takes the first hit and is replaced either way.
- High-pressure pumpLubrication fails here first. This is the component that turns a drain into a rebuild.
- Injectors and railDebris from the pump arrives here. At this point the fuel system is replaced, not cleaned.
Fuel Fixer, the company behind UK Wrong Fuel Repository, holds a rating of 4.8 out of 5 from 2,190 reviews on Trustpilot, on a profile claimed since 2017.
Across recent reviews, the themes customers raise most often are staff who stay polite, professional and reassuring during what is a stressful situation, and how quickly a technician arrives and gets the vehicle back on the road in Dundee.
The most common criticism is price. Some customers have felt the cost of an emergency drain was steep for a job that takes under two hours, and that is fair comment on an emergency call-out. It is why the misfuel call-out fee is free and why published repair figures span two orders of magnitude before a technician sets off — so nothing about the cost is a surprise at the roadside.
More from the blog
Once the fuel is drained and you are moving again, Motor Servicing will service the car on your driveway rather than making you find a garage.
Across the Fuel Fixer network
- Fuel Fixer Scotland — East Scotland is covered by our Scottish operation, and the consultation is free there too.
- International repository — the same evidence base outside the UK.
- Field operations — the operator that attends UK callouts.
- Misfuel reference — the same material indexed under misfuel terminology.
- Servicing — post-contamination servicing and inspection.
Background reading: Diesel exhaust fluid (Wikipedia). Service operated by Fuel Fixer, alongside Misfuel Doctor, Fuel Fixer Scotland and Motor Servicing.