The Max/Venture motor is designed so that not all oil drains out through the
drain plug. Some oil is left in the motor. My understanding is that some
of this oil is left in the pan so that the oil pump does not lose its prime.
In addition, oil is retained in the heads in the cavities which access the
head bolts. I assume the purpose of oil retention in the heads is to keep
the cams lubricated. Therefore, whenever there is an oil change, the new
oil should quickly darken through "contamination" from the remaining old
oil. It is not a problem - oil color alone is not an indication of
something being wrong with either the oil or the motor, particularly when
the oil is fresh.
> Rey Kirkman
VMOA #439
>
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