In reply to 1st May 2013, 04:55

24th Aug 2015, 21:52

Thanks a lot! This describes my 98 LeSabre exactly. It has 155,000 miles and I noticed white smoke, decreased coolant and overfilled oil on the dipstick. It was running rough, so I shut it down and will not run it again until the gasket is replaced. Went and got the repair kit, and will fix it this weekend.

Thanks again. Rick in Indiana.

In reply to 1st May 2013, 04:55

3rd Sep 2016, 14:21

I own 5 GM late model vehicles and simply thoroughly flush and refill the Dex Cool max every 3 years. If a previous owner or yourself waited 5 years even once it's a concern. I really like my GM cars and truck. I just bought another new one in Feb. My main biggest concern with fluid issues is ethanol in gasoline in both my vehicles and boat. It's a major issue for lightly driven vehicles. If it separates it's worse. I use Startron and Stabil. Dexcool is easy to flush. Ethanol fuel in a tank is not.