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Old 03-13-2009, 06:09 AM   #7 (permalink)
almightybmw
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Join Date: Jul 2008
Location: Bozeman, MT
Posts: 248

Daily Driver - '02 Pontiac Grand Prix SE
90 day: 18.45 mpg (US)
Thanks: 1
Thanked 6 Times in 5 Posts
205 is a good temp. my truck runs at 205-210 on the highway or in town (blasted mechanical fan). My GP is much much lower, around 175 or so. No idea why. I guess the aluminum block doesn't get hot much...? Totally weird since the 'stat is 185, or should be.... I have run the GP at 210 before, and not worried. It's the high end for the heat, but no where near the 250 red zone.

here's a nifty thought: Find an auto Protege at the junkers. Take it's fan. It's a two speed instead of one speed. Seriously. It'll get you a low speed help with the heavy up and down temp cycles. If you can get it to hold steady around 200 you're doing great.
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