View Full Version : Oil Change in a 1991 Maristar 454

07-27-2007, 05:55 PM
There is a hose that comes out of the bolt where the drain plug is on the back of the oil pan. That hose is about 2 feet long and has a brass fitting at the end. When I take that fitting off will my oil drain out, or will it have to be sucked out? Thanks Dan

07-27-2007, 06:01 PM
You can push that hose through the bottom of the boat and let it drain as long as it will reach your drain hole.

07-27-2007, 06:16 PM
Be sure to run the engine first in the driveway or do it when you get home from the lake, while it's still hot.

07-27-2007, 06:40 PM
make sure that you don't put it in gear in driveway while it is warming up also. Not good for the strut bearing.

Matt L.
07-27-2007, 07:13 PM

Run it on the fake lake (hose) to operating temp then promptly drain. I've used a drill pump if I was in a hurry.

What Maristar do you have? I've got a 90 240sc w/ the HO454.



east tx skier
07-27-2007, 07:18 PM
Last thing. Once you've run it and dropped the hose through the drain, open the oil fill cap on the block or it won't drain very well.

07-27-2007, 10:17 PM
I just finished. That was an easy job. That tube made it such an easier job than anticipated. However I was told a 454 take 7 quarts of oil, which is what I put in. I went to put the old oil into the empty quart bottles, and I had enough to fill 8 quarts. Was my oil level high with 8 quarts, or do I need to add another quart to the 7 I already added?

east tx skier
07-27-2007, 10:58 PM
You need to check the oil level on the water. That's what's considered "level."