Quote:
Originally Posted by Diesel_Dave
If the grille block is affecting the final coolant temp (after warmed up) at all then you've overblocked it. You want the thermostat alone to determine the final temp. If it isn't you may not be doing any damage (yet), but you're playing with fire because the thermostat is wide open and you can overheat in a hurry if you're not careful.
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Yeah that was my plan to make sure it didn't exceed normal operating temps. It did climb up past it though so I pulled over and cut the slits and the temp corrected itself about a quarter mile later.