I have a 500sl - 1986 - it idles at 400rpm once it is warm and in drive. during warm-up it is a little over 1000rpm. is this within acceptable parameters.

it feels like it is a hair away from stalling, though it never has

also, the oil pressure gauge once it is warm fluctuates around the 2 level. goes right to 3 upon acceleration.

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1986 500sl