# 1 : yes , unless you live where the pak brake has frozen on before , always use it before putting into park .
If the park brake cable ever freeze , remove them and clean well , soak in a clean drain pan with *just* enough new , undiluted antifreeze to cover them , overnight whilst sliding the cable center as far as it'l go back & forth a few times , will lubricate it for live and prevent freezing .
# 2 : This is fine as long as you don't exceed 800 ~ 900 RPM's . as soon as the oilpressure gauge pegs the upper limit you're ready to travel , longer warmup time is bad for the engine .
If this engine is loosey-goosey , use thinng oils so they get up out of the pan and circulatng faster a noisy rod upon initial startup is a dicy thing , carfull attentionto it should mke it last or tens of thousands of miles *but* it can also let go at any time .
# 3 : these are _NOT_ ' dumb questions ' !! .
-Nate
Barton wrote:
>
> Some of this may not be Mercedes Diesel specific, but then again, mebbe it is....
>
> 1). After 280k mi, is it harmful to park in park? i.e. should I *always* set my park brake and make sure the cable and system get regularly used? Does resting on the transmission in park on an incline "hurt the car"?
>
> 2). On a cold start, i.e. hasn't run in more than "n" hours and the oil is fully drained and at ambient temp (i.e. "thick")...is it better to let it idle at whatever RPM is wants to idle at, (i.e. < 600RPM), or is it better to hold the accelerator just enough to quiet the "diesel rod knock" that accompanies the well worn but still strong engine? No more than 800-900 RPM until I'm reasonably sure things are "moving smoothly"?
>
> thx in advance!
>
> -Barton
>
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