I have thought of that. Infact, last winter I took the filler neck off and just installed the cap without the neck. No help. Maybe I'll try it again since I just replaced the upper (I'm still in denial).

My car came with an aftermarket PCV, I took it out and put the Delco in.
I don't know if this was it but I am not getting the condensation this winter.

Good idea. I don't know what'* in there but it certainly is cheap enough to try. Thanks.

If you guys are so concerned about your oil, why not get an oil analysis done? Spend the $20 and you'll know whats going on with your oil. www.blackstone-labs.com[/url]

I know what'* going on with the oil! I've got water in it!!!

I'm going to try the Delco PCV if the higher temp thermostat doesn't do the trick. This is also strange because this is the first year that I've had this issue with the water in the oil. The only thing that'* changed/mod on the car was the 180 degree stat. Everything else (UIM and lower gaskets) were replaced back to OEM specs.

Ok guys are there any updates on this problem.

Just drove the car across the state this morning. Filled up at my destination and after 155 miles non-stop, I have condensation still in the filler neck. I installed the 195 degree stat some 2,000 miles ago.

The next thing I'm after is the PCV. Does anyone have the GM part # for the PCV for a 99?

No change in mine either but I did have to bring the coolant level up about 1/8". I think I am in for a lower intake gasket change in spring.

Sounds like it, Ranger. It makes you sleep much better once it'* done!

My coolant is still dead on 100% of the time. I'm going to replace the PCV when I do the next tune up (in the spring). We'll see if it changes. Otherwise, I like SSEBONNIE'* theory...

PCV valve = 892C
PCV valve kit with valve o-rings and plastic top = 89017274. This runs $18.00 at dealer and $11. at local AC Delco store.

I was hoping you guys did not have to replace any intake gaskets.