Roscoe,
I have one that has been in my car for 9 years with no problems (I have more than one car). My brother has had his in that long as well. The problem is they changed something a few years back (I think it was the rubber formulation so they must have changed suppliers) and the new o-rings swell in brake fluid and blow out in about a year. I have taken many of them out lately where the seals are literally falling apart.
Never again!
David
