Engine Oil Reservoir
Our '83 Classic has a oil reservoir on the passenger side of the engine. I have filled it with the same oil I'm running with, straight 40 weight.
We've driven a couple thousand miles on this trip so far and I'd like to top up with a couple of quarts of oil.
Once the coach has warmed up and the air pressure is up, can I add the oil directly as the coach is running or should the coach be shut off before adding?
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