NOW ,wondering if I should have used a lower degree thermo - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 08-06-2006, 06:52 PM   #1
cvc
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Default NOW ,wondering if I should have used a lower degree thermo

Thrmostat. I just did a coolant refill and drain and chgd the thermostat and I believe the new one was a 195 ? I this too high or would a 185 be too low ? Now im concerned about this UIM problem, mine appears to be a 2001 looking at the date codes on the manifold, were these changed or the same exact ones as the orignal ?
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Old 08-06-2006, 07:03 PM   #2
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they are the same as all the earlier series 2 3.8'*.
The series 1 3.8'* had an aluminum intake as do the series3.
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Old 08-06-2006, 09:26 PM   #3
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195 degree thermostat is stock for the L36, so you're okay. If you were planning on doing modifications or running the car in extremely hot climates I would recommend a 180 degree thermo, but as of right now you've got exactly what the car came with from the factory. No worries.
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