Dexacool

Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the Intrigue / Aurora 3.5L Twin Cam V6 (Short Star ) , 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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jargarner
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Dexacool

Post by jargarner »

Hey wasn't there a class action suit for damage due to dexacool?
I had it in my 1997 ssei and only had issues after 150,000 miles after my waterpump went bad. But now my 2005 Bonnie GXP that I just got last month has Dexacool in it.
So do I keep it or flush it. What is the lastest info??
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SSEi95
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Re: Dexacool

Post by SSEi95 »

Here is some info on dexcool... http://www.zillamotorsports.com/DEX/

Supposedly they have been refining dexcool and the newest version of it out there is not as corrosive as it originally was. I'll let someone with more experience chime in on whether to replace it or not though.
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J Wikoff
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Re: Dexacool

Post by J Wikoff »

I don't think any GXP's were included in the suit. Dexcool was reformulated at some point, and some vehicles got updated LIM gaskets. Some aspect(s) of that combo is supposed to have helped the problem.

Here's some good reading on it though, including expert testimony (GASP) that dexcool is a big contributor to the fault.

http://www.bobistheoilguy.com/forums/ub ... er=1527004

http://www.dexcoolsettlement.com/notice.pdf
Last edited by J Wikoff on Mon Aug 31, 2009 12:20 pm, edited 3 times in total.
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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
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