Quote:
Originally Posted by sixto
Rule of thumb for the fluid is if you can’t comfortably hold the tip of the dipstick, it’s probably at the operating temp of 180*F.
Then measure it after the car sits overnight and you have a reasonable way to check cold.
Sixto
98 E320s sedan and wagon
02 C320 wagon
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I noticed that I could not do this "rule of thumb" repeatedly - upon my yearly doctors exam I came to know Im diabetic now, I just prefer to use my homemade thermistor in a tube sent down the dipstick hole, it wont lose nerve sensitivity over time
