Forte Lubricants Car Rear Crankshaft Seal Oil Leak Conditioner - 125ml

Great product my car had been sitting for a while and when I started it after being in storage for 12 months it started to smoke blue smoke spoke to my mechanic about it and he told me to run this in for a while after a oil change then add another after 3 months it rejuvenated the rubber valve stems seals now it does not smoke anymore saved a fortune on having valve stems dune

Good product

Did seem to make a difference. Used 2 lots. Would use again if needed.

So impressed by this stuff, I have a e92 BMW it was throwing out a lot of blueish smoke after idling; indicating the stem seals have a small leak. Using this stuff and using thicker oil, completely fixed the issue. I am so impressed by this, its the best £17 I have ever spent I think.

Think my valve stem seal are too far gone, still smoking after using. To be fair though have only run the car weekly, not taken it out for long runs, due to being SORN and MOTless. Will update once I do.

Very good

I was sceptical at first, but did the trick. My car was burning oil every 500miles would need like 1litre . Common problem I discovered on bmw e90 2.0i . So used it and the problem gone, so been driving over 2 weeks and the oil is still bang on. Highly recommend it each oil change. Especially for older cars with high mileage.

I didn't have any symptoms with my engine warrenting me to buy this, but my engine had done 106,000 miles, so I took a punt and added this, more as a preventative measure. Now, when I added this product my engine had a couple of foibles, but after driving 2-300 miles I've noticed the foibles improve a little, one of those appears to be improved oil pressure, although I would need to test that properly to confirm my hearsay; fingers crossed. Anyway, time will tell...