About to delve into this oil change
myself. My 4 236 has an oil sump plug on the port side, aft corner of the oil pan.
It also has a 'sump' fitting on the starboard side, about opposite the plug.
Looking around different forums
it appears that the sump fitting works quite well at getting ALL the oil out, better than a dipstick sucker does. (cleaner too) I just have to figure out the Jabsco
hand pump that was left for the job. There don't seem to be any fittings, or connections. I'll have to jury rug some.
PICs next week when i accomplish the task.
2 gallons of 15-30 oil at a minimum, new filter sideways, just to keep a mess flowing......