Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Cummins QSB 5.9 230HP Oil Change
Rob Schepis.
Good Morning,
Am hoping that someone can point me in the direction of a good video that shows how to change the oil on a QSB 5.9. Will be my first one so I would like to do it right.
Thanks in advance,
Craig
Further to my post
Be mindful of getting it fully drained and not overfilling and taking note of the level on the stick.
I believe in a previous post you said you have a Monk 36. In that case I recommend getting specfic advice from the Monk owners forum. There may be details that you would never find in a random YouTube video.
Generically the process is very, very simple.
Step 1: Drain oil
Step 2: Change oil filter (fill new filter with fresh oil before installing)
Step 3: Refill with fresh oil.
The exact details will depend on the access you have and any extra equipment such as an oil changer (Reverso or Jabsco most commonly.)
The potentially tricky part is the drain step if you do not have an oil changer. Access to the drain plug is often difficult if you have to reach it manually.
One thing where I disagree with Steve Lewis is that I never use the oil changer to refill. Why push the remaining sludge in the drain hose back into the engine or transmission? The QSB 5.9 takes only a bit over 3 gallons, so it is not a big problem to just use a funnel to pour the new oil into the filler cap on the top of the engine. The transmission may be more difficult, but it takes only a few quarts.
Do you have a Reverso oil changer? If so I have oil change procedures for 6CTA’s and ZF280IV’s. Overall process can be adapted but the amounts of oils will be different. If you are interested I will post the doc.
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