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⚡ Unlock peak diesel power & efficiency—because your engine deserves the best!
The STP Diesel Fuel Additive Treatment Bundle includes a 200ml Diesel Injector Cleaner and a 400ml Ultra 5-in-1 Diesel System Cleaner, designed to clean and unclog injectors, restore engine performance, reduce emissions, and improve fuel efficiency. Suitable for all diesel engines, this UK-made duo delivers quick, easy maintenance with noticeable results within 50 miles, making it a trusted choice for professional-grade diesel engine care.
| ASIN | B0BWFG75G8 |
| Best Sellers Rank | 22 in Automotive ( See Top 100 in Automotive ) 1 in Fuel Systems |
| Brand | STP |
| Brand Name | STP |
| Container Type | Gel |
| Contains Liquid Contents? | Yes |
| Contains liquid contents | Yes |
| Customer Reviews | 4.6 out of 5 stars 474 Reviews |
| Included Components | 1 x STP 400ML Ultra Diesel, 1 x STP 200ML Diesel Injector Cleaner |
| Item Form | Other |
| Item Highlight | Includes Ultra 5-in-1 Diesel System Cleaner, Cleans Injectors and Restores Performance For A Smoother Engine, Made in the UK |
| Item Type Name | STP Diesel Kit |
| Item form | Other |
| Manufacturer | STP |
| Model Number | SMVP-1-1EN |
| Number of Items | 1 |
| Number of items | 1 |
| Package information | Gel |
| Part Number | E303916100 |
| Recommended Uses For Product | diesel engine maintenance and cleaning |
| Size | 600 ml (Pack of 1) |
| Unit Count | 600.0 millilitre |
| Unit count | 600.0 millilitre |
C**.
This stuff definitely works, you'll notice if your engine is high mileage
Just used the full system cleaner and I definitely noticed a difference. It's effective at reducing engine noise and rough idling making the engine feel more gentle. Hopefully it will boost the durability of my engine since it's on 144k miles. It's also cheap for both bottles at one price.
M**N
Useful
Ok
J**N
Black smoke emissions
Bought due to black smoke emissions. So far fuel economy has improved but still have emission issue. However van has run less than 1k miles since adding so will wait and see.
A**R
Engine Cleanup
Really works well Just as good as more expensive products,just follow the Manufacturers instructions.Highly Reccomended
R**E
Actually works..
This stuff does exactly what it says.. I get a good clear out of particles after adding and more miles to a full tank.. I have a 2011 car and this is my new go to.. I use once every 2 to 3 months as I clock up some miles and works better than previous ones.. definitely on re order
A**R
STP DIESEL FUEL ADDITIVE 👍
Good product and the fuel additive reduced the noise of the diesel engine (RAV4 2013), and improved the fuel efficiency by 3-4mpg. (From 35 to 38.5mpg) On same road conditions last two weeks. Have to monitor the long-term effects.
J**S
Easy of use
Great product simple to use , well worth it if you want to prelong life of your vehicle
K**U
As described, it is okay
It does the job, the engine seems less vibrate during cold start and more responsive for my 10 years old C4 Picasso.
J**Y
Great product.
Quick delivery, great product. Will buy from this seller again.
Trustpilot
2 weeks ago
2 weeks ago