Quote:
Originally Posted by Diesel_Dave
I repeat, the grille block should NOT influence the final operating temperature.
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You are right. Based on your temperature vs time graphs, it seems I may not have run the engine long enough. Each of my test trips were 38 minutes with an operating temp difference of 25f. I didn't realize that it could take that long to warm the engine up. Sorry about the misinformation!
Your figure were very helpful.
Just for my clarification: For the safest engine operation, temperature should not exceed the temperature when thermostat is fully open, ~20f>thermostat initial crack.