| Right temp . . .
. . . for these engines, I've been told by various mechanics (and have read on boards like this), is 87 degrees C. The needle ought to rest just a little above the 80 degree mark on the gauge, nearly all the time. This temp, I understand, is necessary to let the engine reach the proper operating temperature for efficient combustion. My 420SEL -- in New Orleans summer heat, with A/C on, and in slow traffic -- never edges beyond about 90. <br>
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-- The BenzAdmiral ('86 420SEL, anthracite/lt. grey; 'The Tirpitz') |