[sightdev]

Originally Posted by bnaylor3400

I don't use it in our Alero but I use it in two of my GM "W" body cars with no problems noted.

bnaylor3400; looks like you are very resourceful with GM products and mechanical knowledge. I found this online and few others stating the similar on other sites. Ford had the similar “hush-hush repair” on 3.8 and some 5.0 head gasket failure; I know this from personal experience. If this is the case for GM 3.4, others who had failure should have gotten a free repair.

http://www.noln.net/features/feature3.html

“Plus, some lawsuits are claiming that Dex-Cool is at least partially responsible for the string of intake manifold gasket failures on GM vehicles equipped with 3.1L or 3.4L V6 engines. For its part, GM has issued a Technical Service Bulletin (TSB 03-06-01-010) that entitles some owners of affected vehicles to a free gasket repair. The service bulletin blames the gasket material, not Dex-Cool, for the problem. “