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STP Ultra 5-in-1 Petrol System Cleaner is a UK-made, concentrated liquid formula designed to clean and condition petrol engines. It reduces friction, removes deposits, and restores peak engine performance while improving fuel economy. Trusted by thousands with a 4.6-star rating, it’s an easy, cost-effective way to maintain your vehicle’s fuel system between services.
| ASIN | B00NC1GZ7G |
| Best Sellers Rank | 157 in Automotive ( See Top 100 in Automotive ) 8 in Fuel Systems |
| Brand Name | STP |
| Contains Liquid Contents? | Yes |
| Country of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,034) |
| Global Trade Identification Number | 05020144800125 |
| Included Components | STP Ultra 5-in-1 Petrol System Cleaner 400ml |
| Item Form | Liquid |
| Item Type Name | STP Ultra 5-in-1 Petrol System Cleaner 400ml |
| Item Volume | 400 Millilitres |
| Item Weight | 400 Grams |
| Manufacturer | STP |
| Model Number | GST76400EN |
| Number of Items | 1 |
| Part Number | GST76400EN |
| Scent | Citrus |
| Size | 400 ml (Pack of 1) |
| Special Features | Concentrated |
| Specific Uses For Product | Engine |
| Surface Recommendation | Metal |
| Unit Count | 400.0 millilitre |
E**S
Good petrol system cleaner
I tried the STP Ultra 5 in 1 Petrol System Cleaner and I am really impressed with the results. I added the 400ml bottle to a full tank as recommended, and after just a few drives I could feel the difference. The engine runs smoother, the idle feels more stable, and acceleration is noticeably more responsive. It also seems to have reduced a bit of hesitation when pulling away. Fuel economy has slightly improved as well – not a massive change, but enough to notice over a couple of tanks. What I like is that it’s a concentrated formula, so one bottle is enough for a full treatment. It gives peace of mind knowing it’s helping to clean injectors, reduce carbon deposits, and protect the fuel system at the same time. Easy to use, good instructions on the bottle, and made in the UK which is a bonus. For the price, I think it’s excellent value – cheaper than a garage clean and helps keep the car maintained between services.
A**R
Does what it says on the bottle
Easy to use, saw improvement between last tank and end of this tank in acceleration and responsiveness. Improved petrol mileage too
L**M
Crisper engine response & increase in power.
I use this product a lot for my various cars, especially if they are not being used too often. and will double dose if a car will be stood for a month or so. I find it really works, providing crisper engine response, slightly increase power / performance - acceleration and better engine idling and at all rev's - speeds. I'd have given it a 5 Star rating if it was around the £8.00 GBP mark
D**S
Improve engine performance of petrol vehicles!
I gave this to my son for his mini. It was running rough at 60mph on the motorway run, but it isn't now! Job done! 👍😁
M**N
Good product
Definitely works car running really smoothly. Will buy this again.
A**R
Instant difference!
Saw instant performance difference in VW Golf 1.4 TSI.
M**T
Great
great item great price
R**Y
As described
It’s always good to chuck a cleaner in with the fuel now and then Had no problems Good product
U**5
Really great product positive effect on engine sound and performance 👌
V**T
Impeccable 👍
F**S
Limpia el sistema de inyección. Cada vez que lo uso consume menos. Tiene un olor muy fuerte y es muy contaminante. Los usos dos veces al año de manera habitual.
A**A
Lo estoy usando 2 veces al año tras comprobar que cum la primera aplicación bajó el consumo de 4.7 a 4.5 l/100 km Compré este por venir especificado "hybrid compatible"
A**A
Great product
Trustpilot
2 weeks ago
3 weeks ago