When it was for sale in the description:
Will not start, oil overfilled, gas in oil
I changed the oil with MotorCraft 5W20 blend, it wouldn't warm start at all, I saw froth on the dipstick, after returning from Groll69 house.
I changed the oil again, the oil was not frothy, and used Valvoline 5W30, it would warm start then.
When I returned from High Octane was when I found the gas in the oil, I had 80 miles on the oil change.
I never thought about 4 port to 6 port. will research on RX8.com