Didn't I read somewhere that the valve stem seal problem was only an issue for certain engines?? I remember being told a while back that in a 95 LS 3.0 it is not likely the stem seals will be a problem. Did I hear/Do I remember wrong??

My wife's '95 LS has about 154K on it, and is driven 2k-3k per month. We've had it since 74K, and I've kept the oil changed every 4k.

In the last 5-10k I've begun noticing slight smoke from the tailpipe. It is light enough that it's difficult to say what color it is for sure. The smell is more noticable than the visible smoke, but it's there. I guess more blue than white. Must be oil - doesn't smell at all like anti-freeze.

One thing that may need to be considered...about a year ago the ISC stopped working and it has an open across one pair of terminals. I've manually adjusted the ISC plunger and the idle screw which allows it to idle ok. Probably has nothing to do with the smoking problem, but thought I should mention it.