Rislone 4416 Ring Seal Smoke Repair - 16 oz.

I have a '99 Jag XJ8 with 100K mileage. Awhile back, I started seeing blue/white smoke out of the tailpipes at start up. My Jaguar specialty mechanic diagnosed it as worn valve seats, which is not an inexpensive job on a Jag. Since this caused me to lose a half quart every 2 weeks or so, I started adding this in on a 50-50 ratio along with the replacement motor oil. After about 6 months (or 4 or 5 bottles of Rislone), I am smoke-free. So, given I spent about $50-60 on this instead of $1500 on a valve job, I am pleased. While it says "ring" seal, it worked for me on worn valve seats as well.

Certainly does work and did stop the car smoking.

Had a diesel motor that had been sitting for years. Was smoking and using oil. Ran this in it and it drastically reduced the smoke and oil consumption. Helped the rings come back around

well, initially, it actually made it worse like embarrassingly worse. But now after probably putting on a little over 120 miles/200 km there’s just a little hint of blue. It’s a little more blue on start up, but after warming up the car, it practically dissipates to just slight blueish colour. Compared to what it used to be I would say I’m happy with the results and by the way it stop using oil pretty amazing. Consider your guy have to put at least a litre in a week not anymore.

I own a 55 year old two stroke motorcycle that suddenly started smoking when idling. I tried this stuff; idled the engine for 5 minutes per the instructions. IT WORKS! Minimal to no more blueish smoke! Worth every penny I paid for it!