Wynn'sStop Smoke - Reduces Exhaust Smoke Due to Oil Burning - Improves Compression, Viscosity & Engine Performance - Compatible with All Oils & Engine Types - 325ml

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

Used this product on my Ford Focus TDCI. My car had been blowing lots of blue smoke from the exhaust, which obviously indicates an issue that could prove costly, but after using this the smoke has more or less disappeared. It means I can drive my car without the embarrassing smoke until I decide to replace my vehicle. Does exactly what it says on the tin

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

Very thick but did not stop smoking

Smoke didn't seems any worse or better, so hard to tell if worked...

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

Looks like is doing the job. Have use it on a Peugeot 207 1.4 diesel engine. Have changed the oil and add the product. Less than 30 miles drive and I already see improvement on exhaust smoke, like massive improvement. Engine sounds much better and compression improved.I would definitely recommend and will use it again.

Does what it says on the tin opens easily pours with no spillage. Has greatly reduced the smoke from the car. Will buy again when close to 4k miles