Universal diesel M18 Oil Change

May 7, 2023
33
catalina 27 lake st clair
The tube coming from my oil pan can be positioned lower than the pan. Do I still need to use a pump? Seems like gravity would drain the oil. I saw a video on youtube of a guy with the same tube and it ran to the top of the engine and he used a pump? I think the tube was meant to run below the pan to avioid the need for a pump. What he was doing made no sense. Am I missing something?
 

RitSim

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Jan 29, 2018
412
Beneteau 411 Branford
My previous M25 had a drain fitting on the bottom of the oil pan for oil changes. The loose end of the hose was capped and tied above the oil pan level. No pump reuired
 
Mar 6, 2008
1,101
Catalina 1999 C36 MKII #1787 Coyote Point Marina, CA.
I use a pump with the hose. You will find that, unless you extend the hose and let it drain into a container placed in the nearest bilge, the drained oil level into a container will quickly rise and stop draining. I use an impeller pump with 12vdc motor from harborfreight.com.
 
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