For most applications, an aviation mechanic told me
that oil begins to breakdown after 100 engine hours.
Assuming about a 40 mph average speed that works
out to about 4000 miles. So changing every 3000 is
a good rule.
Perhaps what we all need is an engine hour meter.
They are available. You could mount to next to a
TBO (time between overhaul) meter. Good for
conversation.
Of course you should have already rewired the
turn indicators so the left (red) flashes when
turning left and a green indicator indicator flashes
in the right used Overdrive hole. Green and red
turn indicators. TBO meters. Now all you
need is the stroker motor to get off the ground.
Dave Johnson
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