Small amount of petrol in diesel — a Teesside answer- # Small amount of petrol in diesel — a Teesside answer By Rambo S, Wrong Fuel Expert at Fuel Fixer International · 30 September 2026 A small amount of petrol in diesel still matters on a modern engine. The risk comes from running it, not from the splash itself — so leave the key out. Call 01293 248666. ## What counts as a small amount People mean different things by it: a splash before they noticed, a couple of litres, the first click of the trigger. What they are really asking is whether they can get away with driving it. On a modern diesel the honest answer is that you are betting a pump on it. ## The cheaper bet A drain costs a known, fixed amount and takes about an hour. A high-pressure pump and a set of injectors is a workshop job measured in hundreds or thousands. The asymmetry is the whole argument for leaving it where it is and calling, even when the amount really was small. ## If you have already driven off Pull in somewhere safe and switch off as soon as you notice knocking, smoke or a loss of power. Tell us how far you went. Most short distances around Teesside are still recoverable with a drain and a new filter. ## Around Teesside Teesside calls are more commercial than almost anywhere else in the network: process-plant fleets, port and freight traffic, and contractor vans. Drivers in a works vehicle they do not normally take out are the single most over-represented group in misfuel work. Shift patterns rather than rush hours, plus a summer coastal peak towards Redcar and Saltburn on the A174. That applies across the villages we cover, including Haverton Hill, Hart, Dalton Piercy, Thorpe Thewles, Carlton, Redmarshall, Bishopton, Stillington, Preston-on-Tees, Aislaby, Kirklevington and Hilton. Leave the key alone This is the one that decides the price. Wrong fuel sitting in a tank is a drain; wrong fuel that has been through the engine is a different job. - Do not push or coast it Moving the vehicle can slosh contaminated fuel toward the pickup. Leave it where it is unless staying there is unsafe. - Make yourself safe Hazards on. On a forecourt, tell the cashier — they will almost always let you stay put once they know a drainer is coming. - Call 01293 248666 Tell us the vehicle, which fuel went in, roughly how much, and whether the engine ran. You get a full price before anyone sets off. - We drain, flush and prime Tank emptied, lines flushed, fresh fuel in, system bled and run up before we go. - You drive away Most jobs finish on site in about an hour. The old fuel leaves with us under a waste transfer note. ## Why the engine matters more than the litres People assume a splash is fine and a full tank is a disaster. It is the other way round. Wrong fuel sitting in a tank is inert — it is a drain. Turn the key and it travels: lift pump, filter, high-pressure pump, injectors, and every stage it reaches adds a component to the bill. Five litres burned is worse than fifty litres left alone. Downtime on a commercial vehicle costs more per hour than the job itself, which is why draining on site rather than recovering to a workshop is usually the only answer that makes commercial sense here. ## The cost, honestly People expect the number to depend on the amount of wrong fuel. It barely does. It depends on how far the contaminated fuel travelled through the engine. **Call-out**: From just £89 misfuel callout fee **Engine never started**: Usually the drain and flush only **Engine run briefly**: Drain, flush, often a new fuel filter **Driven some distance**: May need the high-pressure pump or injectors checking — a workshop job **When you hear the price**: On the phone, before anyone travels ## Questions we get asked **Do you cover all of the TS postcode area?** Yes, from one rota — so being at one edge of the area rather than the other changes the arrival window, not the price. **Is there an out-of-hours surcharge?** The call-out is the call-out. Whatever the total is, you hear it on the phone before anyone travels. **What about a van or a hire car?** Same job. With a hire car, ring the hire company too — some policies cover a misfuel drain and it is worth knowing before you pay. **What if it is not safe to drain where I am?** Then we tell you that on the phone rather than after arriving. Being told honestly costs nothing; being told on arrival costs a call-out. **Do you work at night?** Yes, around the clock, every day. A large share of misfuels happen after dark, so the rota reflects that. ## What people actually said 4.8 out of 5 from 2,190 Trustpilot reviews. Two themes dominate the positive ones — how fast someone arrived, and how calm they were about it. The recurring negative is price. Publishing that alongside the answer seems more useful than hiding it: From just £89 misfuel callout fee is the call-out, the total is quoted before a technician moves, and there is no charge for being told on the phone that this is a job for a workshop. ## More local guides - How to dispose of old petrol in Teesside, legally - Does insurance cover a misfuel? A Teesside guide - Stockton-on-Tees misfuel guide: roads, villages and real costs - The Redcar misfuel guide: first hour to back on the road - Ingleby Barwick misfuel guide: roads, villages and real costs - The Normanby misfuel guide: first hour to back on the road ## More on wrong fuel in Teesside For coverage by postcode district, see the postcode index; for the roads we cover, the road guides; and for every town and village by name, the area index. ## Who you are dealing with Wrong Fuel Teesside is a service by Forecourt Assist. Forecourt Assist is a trading name of Fuel Fixer Ltd, company no 08520551, a company of Fuel Fixer International. Registered at Fairway House, Portland Road, East Grinstead, RH19 4ET. Fuel Fixer International is owned by Stockbridge Capital Holdings. ## Across the Fuel Fixer network Wrong Fuel Teesside is one of the brands operated by Forecourt Assist. The full directory is on the operator site. - Wrong Fuel Dumfries — Dumfries and Galloway - Wrong Fuel Carlisle — Carlisle and the border - Wrong Fuel Whitehaven — Whitehaven and Copeland - Wrong Fuel Dumfries — Dumfries and Galloway - Forecourt Assist — the complete network directory - Fuel Fixer International — the operating group - Stockbridge Capital Holdings — group owner Background reading: Misfuelling — Wikipedia.