How To CHANGE THE OIL on the Mercury 4 Stroke

[@jcaudle5333]

Got my boat at Conrad Bros. Great place.

[@heldercorreia9350]

You should be using 10W-30 synthetic blend for the 250 V8 Pro XS, check the decal on back small cover on powerhead or owners manual.

[@kadenengle9385]

Owners manual recommends 1030 but says 2540 is acceptable… in my opinion 2540 is much better in an outboard, and it’s what I run in my Merc 150.

[@elkbow]

@@kadenengle9385 I agree, I run 25W-40 in mine, especially in hot weather like here in New Mexico

[@DinsmoreOutdoors]

So I'm in FL have the 250 pro XS, and because of this video I bought 25W-40. So my outboard will be ok?

[@elkbow]

@@DinsmoreOutdoors will be fine, it's even listed in your manual as an alternative. The reason why they say 10W-30 is cold places, it will work fine in cold or hot, but man it's like pee in hot weather.

[@parcadv419]

got a 115 brand new 2020. heading out here in panama city for reds . ty Johnny very much

[@davidhudson2087]

Thanks John made my joe easier🎣

[@BobbyBarracksBassClass]

Thanks Johnny Boy!! Great vid help for us knuckeheads!!

[@ericporterfield8492]

Great stuff thank u

[@bleedingcrypto2214]

The link doesn’t work in the description below. What’s the model number for the oil filter please

[@flipper2473]

Hey John, Have you ever heard a tic, tic ,tic sound after lowering your motor and releasing trim button. I have a 2023 200 HP merc, does it when motor is about 80 % trimmed down to start, then I decide to trim a bit more , "tic, tic, tic" Thanks

[@JohnCrews]

It likely needs grease on the trim piston ends. Just run motor up and put on the balls on end of the pistons with your finger

[@levi7364]

What are the diffrences at 25w40 and 10w30? My boat stays 365 days a year outside, what is the best oil I van use for a mercury fourstroke?

[@JohnCrews]

Higher the number, the thicker the viscosity. Stay with the owners manual recommendation

[@chuckkaleel9105]

Great video!!

[@mileshiles1287]

I see that no oil came out of the filter is that correct. I changed the in my 90 no oil came out just bought a 200 on a 2020. Had a inboard outboards are awesome for home maintenance.

[@inigomontoya6968]

Nice video! Quick question. Doesn't the motor need to be in water (or have water flushing through it) before you start it up and look for leakage? For us first time boat owners, how is that done from your garage? Thanks!

[@JohnCrews]

You can start it with no water for 5-10 seconds. Thanks!

[@heldercorreia9350]

You have to use what they call ear muffs attached to water pickup on gearcase using a garden hose.

[@Maynardd]

@@JohnCrews great video! Straight forward and simple. Not to be argumentative, but I have seen an impeller go bad in literally 5 seconds from starting an outboard with no water. I would not recommend starting it without water. Especially multiple times, overtime. Each to his own I suppose…

[@bakervinci163]

@@heldercorreia9350 you can actually start it up and run it for a few seconds with no muffs.

[@Maynardd]

@@bakervinci163 no, you should never start it without being in water or using muffs. Ever!

[@marshpirate2924]

Should you run the motor prior to changing the oil?

[@KansasAnglingExperience]

You don’t have to but it helps to have the engine warmed up so the oil flows out nicely.

[@rookiesteelheader]

I just bought a new boat and haven’t taken delivery of it yet. The question I have is does doing this yourself void any of the warranty? Thanks.

[@Maynardd]

I see this is three years old. But no it does not as long as you document.

[@Scottrz28]

Hello John - very helpful thanks for posting - what is the oil filter number?

[@r2009moody]

Says at the 20 sec mark

[@bakervinci163]

I feel almost certain that I was told to change the gear and motor oil after the 10 hour break in. Is that not correct ? I just got a 2023 300r and am doing it anyway. Maybe it’s overkill

[@Maynardd]

It is overkill, my dealer told me to do the same thing at 20 hours. There is nothing in the manual that states this. I called mercury and they said there is no need to do anything until the 100 hour mark. But they also mentioned it certainly isn’t going to hurt because then you can check for metal in the oil and or gear lube. Then again, your motor is under warranty. so it’s not going to hurt to do it. But you don’t need to.

[@jasonmausteller2488]

Doesn’t the manual call for 10w-30

[@DinsmoreOutdoors]

It does and because of this video I got 25W-40 😒

[@Maynardd]

You can use either or. But it is recommended 10 W 30. I would go based off of where you live. If it’s extremely hot I would go 25,40.

[@ebardales1]

What’s the oil filter part number? Thanks

[@Firefgtr1]

You can see it at 6:01 35-8M0123025