⚡ Unlock peak diesel power & cleaner rides — don’t let your engine fall behind!
The STP Diesel Fuel Additive Treatment Bundle combines a 200ml Diesel Injector Cleaner and a 400ml Ultra 5-in-1 Diesel System Cleaner to effectively remove deposits, unclog injectors, and restore engine performance. Suitable for all diesel engines, this UK-made duo reduces emissions, lowers fuel consumption, and smooths rough idling with easy, single-tank treatments recommended every 3000-4000 miles.
| Manufacturer | STP |
| Brand | STP |
| Model | STP Diesel Kit |
| Package Dimensions | 24.6 x 10.5 x 9.4 cm; 660 g |
| Item model number | SMVP-1-1EN |
| Manufacturer part number | E303916100 |
| Item Weight | 660 g |
L**.
It works!
Brilliant! Engine works much better and fuel becomes efficient. Will order again.
N**N
Excellent product. Works very well.
My engine was stuttering when I put my foot down and I suspected the injectors might be the problem. Used one bottle of this on a full tank of diesel and I am now half way through the tank and my problem has gone. Car feels more responsive and the engine is running much smoother. Excellent stuff. Would recommend.
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**N
Very good stuff
Functionality:Briliant product hi did the job perfectly
N**K
Easy to use and effective
I was advised to get this by my garage for my wife’s now 20 year old diesel Audi. It had failed emissions on one MOT, but that is because she doesn’t use it much for longer trips.Easy to use, the car seems a little quieter, and it sailed through the last MOT.Well worth the money.
M**1
it works
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.
G**M
Who knows!
The body of scientific evidence proving the efficacy of this stuff is essentially zilch. And did it work for me? Also entirely unclear. Maybe it made a marginal improvement for a time? Who can say really, tests on one vehicle are next to meaningless. But did it hurt the car or its engine? No, not at all.The brand clearly trade on "it's worth a shot" and who am I to argue. Especially since critical reviews don't need the Amazon guidelines!
S**Y
Diesel jet cleaner
Good jet cleaner for car
Trustpilot
3 weeks ago
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