Are you in the business of dealing with rotary shaft equipment? Then rubber seals are likely a component often taken for granted within your mechanical assemblies. Optimal efficiency and performance are paramount to your success as a manufacturing company. Thus making oil seals an incredibly important part of the equation.
I tried the recommended product form the oil change place twice and it did nothing. I looked at the cost to replace the gaskets...wow no. So, I decided to take a look at Amazon and found this product. I put in half the bottle as it recommended and the problem went away 50%. Very good!! So, I put in the rest of the bottle and after a few days, no more smoke coming through the vents or from underneath the car. Thrilled. There is a subtle smell of oil every now and then after a drive on the freeway and sometimes when I stop. It could be the transmission because that was leaking too. Bottom line is if it stays this way, I can keep the car for a couple more years until I get a new one. I am happy.