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⛽ Drive cleaner, drive smarter — unleash your diesel’s true potential!
STP Diesel High Mileage Injector Cleaner is a 200ml concentrated fuel additive designed specifically for high-mileage diesel engines. Made in the UK, it cleans and protects the entire fuel delivery system, restoring engine power and improving fuel economy for up to 300 miles per treatment. Trusted by professionals and DIY enthusiasts alike, this formula smooths rough idling, reduces carbon deposits, and enhances acceleration, making it an essential maintenance step for extending engine life and performance.















| ASIN | B075NHH5GN |
| Best Sellers Rank | 53 in Automotive ( See Top 100 in Automotive ) 2 in Fuel Systems |
| Brand | STP |
| Brand Name | STP |
| Contains Liquid Contents? | Yes |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.6 out of 5 stars 1,534 Reviews |
| Global Trade Identification Number | 05020144500254 |
| Item Form | Liquid |
| Item Type Name | STP GST25200EN Diesel High Mileage Injector Cleaner - 200ml |
| Item Volume | 200 Millilitres |
| Item Weight | 0.21 Kilograms |
| Item form | Liquid |
| Item volume | 200 Millilitres |
| Manufacturer | Spectrum Brands Limited |
| Material Features | Durable |
| Material Type Free | Plastic |
| Material feature | Durable |
| Model Number | GST25200EN |
| Number of Items | 1 |
| Part Number | GST25200EN |
| Scent | Orange |
| Size | 200 ml (Pack of 1) |
| Special Features | Concentrated |
| Specific Uses For Product | Engine |
| Specific uses for product | Engine |
| Surface Recommendation | Metal |
| Unit Count | 200.0 millilitre |
T**.
Excellent product stop here solved my high mileage Land Rover in few hours
Yes I thought I’m going to give them a try this time and I diverted to this product and I’m glad I did it has got to work and a huge difference in what 10 miles I started noticing the acceleration levelled in response to my foot instead of struggling I now after a week have a vehicle that runs pulls good and is responsive again easy to use a cheap way to solve further headaches if left I will be using every 2900 miles as I have high mileage
J**H
Good product and gives great result
Did the job perfectly. I have only used one of the bottles so far. My diesel engine started running a bit rough and felt like she might cut out when I was stationary at junctions. She's an old Kia Sorento. I figured before I booked her in for exploratory work, I'd add the bottle to my next tank of diesel and it worked. One day, when I put my foot down hard, I could see a puff of black smoke come out of the back of the car (after I'd used this additive) and have not had a problem since. I think it cleared whatever gunk was in the fuel system. I'll be using the second bottle in about 6 months time. I used the Diesel Injector cleaner first. I'll use the Diesel System cleaner next. Good price and super fast delivery. I've only used the injector cleaner so far and driven around 100 miles but the fuel economy has definitely increased and the engine noise has gotten quieter so i'm happy to recommend.
S**E
It works
My Vauxhall has frequently DPF troubles. I used this once and felt the acceleration improved substantially. I thinks this works on the injector as said and will buy the system cleaner later to keep my car away from the warning DPF light.
V**N
Star Performer
My 140k Miles BMW 5 series went quite only after 100 miles or so. Improved mileage and pickup.
W**R
It worked for me on my 09 plate VW CADDY VAN
i had trouble in the mornings with hesitation and the feel like the van was choking itself up , friend of mine said probably your injectors , well i looked to see if it could possibly be something else more than the dreaded injectors , i saw that the filters sometimes can get caked with the poor quality diesel we use from supermarkets and this can indeed lead to blockage of injectors filters etc etc so i bought a bottle followed the instructions and waited , the first week nothing seemed to change and i thought and feared the worse , but read some other reviews and saw other people had tried a second bottle the next time the tank was near empty this time at the end of the second week the problems had gone, so i will now use a bottle every 3-5000 miles to flush through the system , obviously its not always going to work for everyone but if you have similar issues then for just over £5 a bottle its worth a try so i highly recommend it .
S**X
Good
Very pleased with this item
R**R
Very effective and recommended every 3-6 months
Instant effect noticed when added to fuel tank. Recommended for diesel engines every 3-6 months to avoid blocked dpf problems - if not included in your annual service, add it yourself.
A**N
Couldn't notice any difference, but was more of a proactive measure
Reviewed Oct 2023: Put this in my 160k Defender TD5. To be fair, its pretty sound from an engine perspective, it starts, doesn't really smoke once warm, and pulls well considering. Put this in more as a proactive measure to try and keep it that way with winter coming (it was fine last winter). No noticeable difference while using the 1/2 tank of fuel I put it in, and nothing since. I don't measure the MPG, its not practical because as a defender its generally driven every where full throttle just to keep up with regular traffic. If we get through the winter without any issues with starting or running, then I'l view that it worked.
R**O
Additivo
Ho una vettura con 300.000 km ed ho voluto provare. Piccolo investimento ! 😀
D**J
nettoyant
ok
D**Z
İşe yarayan katkı
Ürün çalışıyor. Sabahları titreşimli çalışıyordu araç büyük ölçüde düzeldi kullandıktan sonra.
J**Y
Top
Tja STP eben , Fehlerfreies Produkt
H**S
Perfecto y lo volveré a comprar.
Aunque se equivocaron en el envío se solucionó rápidamente. El producto muy bien. Cuando lo puse en el depósito al los pocos kilómetros se notaba como el coche iba con más fluidez, más "alegría" teniendo en cuenta que son más de trescientos mil kilómetros.
Trustpilot
1 month ago
1 month ago