HOLY CRAP!! Do you boys beat your cars or what :? Gordy my car is the same year as yours with close to same milage and i have had to do a wiper motor and oil sensor :? Original altenator, waterpump, and dimmer swtich ...however, my latch on my console broke off :( Thanks to my bf for that @$^^*&% that'* what happens when you push on it and lean over...crazy glue, however, works wonders....
239...am i....there....yet?

HO-LY...and your car has LESS (typo)kms on it then mine...I guess you boys just don't know how to love your car like a woman does

No , but we do love our women in our cars ( just kidding)

I agree 100% . If the car is tough , it well hold up . Bonnevilles are in a fine line lot'* of luxury and lot'* of performance! I am assuming that'* why we own them . I don't think our cars are ***** cats . If the car can't withstand me , I'm going to japanese cars ! But i have confidence.

I had to have the upper intake manifold replaced this summer.. Cost over 700 including tow bill after the hydro-lock. The dexcool was entering the throttle body and then the cylinders. Acording to the mechanic the dex-cool had caused the plastic housing to disolve.
We changed it over to the green stuff (regular antifreeze) .

So Guys & Gals beware.. And that was just at 100,000 miles so if you are still runing the orange stuff better get it checked out. I' ve heard other tales that are just as bad regarding Dex-cool...........

'98 With 117,000

Well said, JR. Mine went at 83,000 miles. I was drinking about 1 gallon a day. I got lucky and didn't get the hydrolock problem. The ERG intake tube is the actual culprit here. If your don't keep you coolant below 200F, the EGR intake gets too hot and starts to break down the gaskets in that area.

A note to the 3800 Series II NA peeps:

DO NOT USE THE GREEN ANTIFREEZE IN CARS SPECIFIED TO USE DEX_COOL!!!
The standard antifreeze has silica in it...an abrasive. The Dex-cool does not. If use use the green stuff, your parts will wear faster and break down more often. Especially the gaskets surrounding the intake.

Deathrat, could you look up a TSB that covers this? I don't remember the number, but I think there were 3 that came out 4-5 yeras ago that covered this issue, right around the time they did the switch.

Well it'* YOUR MONEY after all & I like to keep mine. I started fixing cars when I was just 14! By your age I was running a race car & driving it!

As an engineer who designs waterpump seals for the OEMs (GM included), I feel the need to chime in on coolants. The traditonal green and Dex-cool are both basically just ethelyne glycol. The only difference between the two is the additives that are used to prevent metal corrosion. The green uses silicates which prevent corrosion by coating the inside of your engine. Dex cool uses OAT (Organic Acid Technology) to prevent corrosion. These additives do deplete over time. The main benefit of Dex cool is that it takes longer to deplete the corrosion protection. That'* why it is sometimes referred to as long life coolant.

Green, silicated coolant is not normally abrasive. If the coolant boils, the silicates may come out of solution and create abrasives. The argument is that if you remove the silicates from the coolant, you will eliminate a failure mode of the seal. This is true. However the conditions that cause silicated coolant to become abrase, also cause other failure modes.

So green coolant is not bad for a car, as long as you maintain it. If your car came from the factory with Dex cool, keep using it. If your car came with green coolant, there is no real benefit to switching to Dex cool, except for a somewhat longer life. You will still have silicates in your engine because a system flush WILL NOT remove the silicates that have plated out on the inside of the engine.

I hope this makes sense, I tried to keep this brief. I could probably write a 10 page article on this if I didn't watch myself.

I'm pushing high 10'* and low 11'* on two of my cars need i say more(naturally aspired small block and no weight modifications)

opps