💨 Drive cleaner, quieter, stronger — because your engine deserves the best.
Wynn's Stop Smoke is a 325ml oil additive designed to reduce exhaust smoke caused by oil burning, improve oil viscosity at high temperatures, and seal gaps in worn engine components. Compatible with all oil types and engine configurations, it enhances engine performance, reduces noise, and supports emissions control, making it ideal for older or high-mileage engines seeking renewed efficiency and longevity.
| Manufacturer | Wynn's |
| Brand | Wynn's |
| Model | Stop Smoke |
| Product Dimensions | 6.8 x 6.8 x 12.2 cm; 312 g |
| Item model number | 1831090 |
| Manufacturer part number | 50865 |
| Item Weight | 312 g |
| Viscosity | 10W-40 sae_grade |
A**S
Best oil
Can’t believe it actually worked as it described.Very Happy car became very quite and smooth and no more smoke from exhaust.
M**H
Worked for me!
WOW! Got a X5 30d 2011 which has been smoking in the morning. Whenever I start the car and leave it for about 10mins, it start to smoke for about 5mins and then stop. This happens each time the car is started from standing still. Was told the Valve Stem Seals needed replacing. So I thought let's look for a decent temporary solution and thats when I got Wynns Stop Smoke after reading the reviews.So I warmed the car up for 15mins (idelling), turned it off, put the Wynns in, left it for 2mins, started it again and let it run for 10mins and turned it off. After about 20mins I took it for short 5miles drive (normal driving). And it was still smoking, i thought at this point its a waste.Flip it to the next day, I thought id take this to drop the kids off, started the car, drove it 10miles and gues what. . .NO SMOKE. Im not getting ahead of myself and will keep a eye on it and report back 1 week after today.I added 2 pics of before and after.. couldn't load a video but will give you a idea.
L**E
Engine running smoothly
Working well not sure how long it’ll last for but good value for money and the engine is still running smoothly
S**R
Amazing stuff
I tried all sorts of stop smoke oil an engine none of them worked until I tried this. My old Mercedes was blowing blue smoke on idle probably piston rings or valves need doing which is highly expensive. This however completely remove the smoke after one application of the oil, absolutely amazing
C**W
Unsure it did much....
Smoke didn't seems any worse or better, so hard to tell if worked...
S**N
Stop smoke for oil
This product is very easy to use, so now that I use it, I will buy an extra bucket and it will be very good for you to use when you come back
R**
Helps for the short term
Been burning a crazy amount of oil in my engine. Mechanic told me it's my piston rings. More economical for me to get a new car than the repair cost. Using this has cut down my oil consumption by about 80% so I can still use my car while I look for a new one
J**N
Great product
Really simple to use, didn't stop all of the smoke but did reduce it and improve fuel efficiency, reduced rattle in the engine and did what we needed
Trustpilot
2 months ago
3 weeks ago
