F225 Oil Changes

[mtcfish]

How often would you change the oil on a 4 stroke?

[ave8er]

as often as it says to in the manual with one exception, I would change the filter every time

[ESfishdoc]

1st time at 10 and then at 100 and every hundred for the rest of its life for the F225.

[seahorse]

Read the Yamaha owners manual. You have to change the oil at least twice a year according to the maintenance schedule published in it. That is every 6 months or 100 hours, WHICHEVER COMES FIRST. The new F250 manual also says to change it more often if you do a lot of low speed or trolling.

[muskrat]

what if you used syn oil every 100 hours?????????????

[baypro21]

I change oil and filter every 75 hours, was changing at 50, but I think that was overkill.

[Wild Bill]

The manual says oil change every 100 hrs and filter at 200. I change the oil at near but under 100 hrs*and always change filter. I guess it is OK to put clean oil through a dirty filter but I never liked the idea. For the cost of a filter I feel better changing it each oil change.

I think the 100 hours is reasonable for engine oil changes but wonder about having to change the gear oil every 100 hrs. I do it because that is what is recommended but do not understand why it has to be that frequent. I would think once a season would be plenty.

[chiefbob1]

if you do alot of low-speed trolling BUT....you use syn oil (as muskrat asked) you don't lengthen your oil change interval one bit. Synthetic is great but the reason you do oil changes more frequently in low speed operation is due to the water/fuel build-up. having switched to synthetic oil, you do not now draw a "pass" on that buildup.

[Sea Wolf]

If the "owner's manual" recommends oil changes at 100 hours, I would perform that preventive maintenance process every 50 hours.----- Oil and filters are cheap, engines are expensive!------ If you perform the process yourself, it is only costing you the price of the materials. ----High quality / state of the art preventive maintenance equals long engine life. I would also use the highest quality lubricant. If synthetic is recommended by the manufacturer, I would use synthetic motor oil.

[Wild Bill]

It may depend a on how fast you put on hours. I have put 50 hrs on my motor in an 8 day fishing trip at Montauk. If you use your rig every day all day, the hours pile up pretty fast. If guys want to change at 50 hrs that is fine but Yamaha had a reason for recommending 100 hrs.

This has been hotly debated before but my dealer told me that Yamaha does not want synthetic oil in their FS engines--something about it drawing and holding moisture. I do not know the detailed engineering reasons behind this but am not using synthetic. I doubt I will wear out this engine by using good quality regular oil*with the correct specs.

[anglerwho]

Read your manual and use common sense.

[N3NFX]

I change oil, filter and gear lube every 100 hours. I use all Yamaha products..2002 F225, well over 600 hours now..

[mtcfish]

I run up 100 hours in 2-3 weeks. I've been changing the oil and filter every 100. Comming up on my 3rd oil change. Changed my lower unit oil for the 2nd time this season. Use all Yamaha lube products with exception of the fuel filter... I put in a Racor.

Thanks...