dirty oil after 3K miles

[RJ2112]

.02; the oil filter is a particulate strainer...... it is supposed to capture the chunks. As the filter media traps the material in the engine oil, some of the gaps in the media get blocked. (obviously)

What seems to be missed by most folk is that the media becomes more efficient at blocking particles the longer it is installed.

Much like a log jam in a river, the first stuff blocked is the biggest.... as the big holes become blocked, the smaller particles are routed through smaller holes, and more of them become trapped in those. The filter becomes more effective at removing the little stuff over time. This can go from 200 microns down to 15 or 20 microns.... replacing the filter prematurely, limits it's ability to capture the little stuff.

The filter does nothing concerning the Ph of the oil, or water content, and is only there to pick off the stuff that would score the bearings. Right up to the point where it blows the bypass valve, is where it is working at it's best.

Yes, I do change the filter every other oil change.

 

[RJ2112]

I don't agree on it being wasteful. Changing the factory exhausts which are stainless steel and forking out $700 + for different ones is wasteful!!
By changing the oil at 3000km for me is a real advantage for the next person who buys my scoot. I rarely keep a bike more than a year.
Oil and fuel are the cheapest things that go into a bike.
No doubt my comment on the exhaust change will create a backlash of sentiment but in reality, I don't need more power or noise.
If I did, I would by an R1

Just my opinion.

Variety is the spice of life. Do as you see fit.

If you were a milk drinker, do you throw out the milk and buy a new bottle every day, regardless of how much remains in the bottle? Or would you give it a 'sniff test'?

Assuming the next person who buys your bike is discerning enough to run it through a shop and have them evaluate it....... do you think there is any measurable reduction in wear, or preservation of performance that would be attributable to changing the oil at 2 or 3X the frequency specified in the owner's manual?

 

[Rumpole of the Bailey]

Variety is the spice of life. Do as you see fit.

If you were a milk drinker, do you throw out the milk and buy a new bottle every day, regardless of how much remains in the bottle? Or would you give it a 'sniff test'?

Assuming the next person who buys your bike is discerning enough to run it through a shop and have them evaluate it....... do you think there is any measurable reduction in wear, or preservation of performance that would be attributable to changing the oil at 2 or 3X the frequency specified in the owner's manual?

The milk analogy is a folly in itself and I won't answer that.

I guess after living in remote parts of a huge continent such as Australia you start to value the reliability of a machine, especially one that transports you.
I know engineers that believe you should never change the oil in any petrol engine and practice that with their company cars.

I also know a few mechanics that I have represented in court that argue the value of changing oil more frequently than the manufacturer suggests, in the view of engine longentivity.

Ah, the middle ground?

When I sell my bike and give the new owner the manual with various receipts for oil and filters and days of installment, I can look that person in the eye and say, 'I've looked after that bike mate, hope you have the same enjoyment I got out of it.'

Just my humble opinion. But also consider this. Everytime I change the oil, it gives me a chance to go over the bike and check it out, looking for loose items, problems etc. You do this when you live in a State as big as Texas with only 2 million residents. And youi do this when you measure your riding distance in hours not miles. We call it 'outback Australia' and to me mate, that is Fazer country.
Yeah.
RB

:rockon:

 

[Wavex]