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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-13-2010, 11:12 PM   #1
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im sure i already know the answer to this but should i get rid of the orange crap in my 97 ssei and replace it with normal green or just leave it be
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Old 05-13-2010, 11:14 PM   #2
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You won't really see any additional benefits of switching from Dex-Cool
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Old 05-13-2010, 11:14 PM   #3
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there is no real difference between dexcool and normal green coolant that was all a myth
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Old 05-13-2010, 11:16 PM   #4
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ok but ive heard that it will destroy my head and intake gaskets??
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Old 05-13-2010, 11:18 PM   #5
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That'* complete myth. We had a member on here run a year with green coolant and plastic LIM gaskets and the gaskets were still beginning to fail with the non-dexcool coolant. The problem is how the LIM gaskets were made. The new aluminum ones fixes that problem.
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Old 05-13-2010, 11:21 PM   #6
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It'* a myth https://www.gmforum.com/showthread.p...light=dex+myth

You can change it if you wish, but no need to do so. If you do you need to totally flush the system. If you leave even a little it will sludge up and clog up your cooling system
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Old 05-13-2010, 11:22 PM   #7
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let me guess to replace them off come the supercharger and all that vun stuff just like on a v8 p.*. theyre not going bad just my way of knowing twhat to be ready for and also some prevenative maintinece
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Old 05-13-2010, 11:24 PM   #8
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Old 05-13-2010, 11:27 PM   #9
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alright thank you all for the information
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Old 05-13-2010, 11:29 PM   #10
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Changing the LIM gaskets is about a 3 hour job. About $70 in parts and a few tools.
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