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Mercury 525 Oil and Fuel Filter Change

Mikes56

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Hopefully someone knows this off the top of their head.

How many quarts of engine oil does the 525 hold?

Also, I’m changing the spin on fuel/water filter. Am I gonna get doused with pressurized fuel when I remove it? Is their a pressure relief that I don’t know about? I did this a couple years ago, and don’t remember and don’t feel like looking it up after being in the bilge trying to snake the oil drain hose thru the hull drain hole.

Thanks guys.
 

Shlbyntro

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7qts plus remote line and filter capacity. Typically between 8-9 qts if you use the hp oil filter.

Fuel filter should not be pressurized unless you have a boost pump update on the engine. Just make sure the key is off and spin off slowly. Make sure to prime new filter with fuel before installing.
 
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