Oil change interval

[drifter17a]

Chaps

i am always curious whether oil material degrades if it sits in engine for say 2-3 years. In 2020 i changed oil on my r6 bike and since done 400 miles , would you change oil?

 

oil looks like new and brown/gold colourish when pulling stick

 

i always change it as it is performance bike/ and also on car however think you don’t need to really unless 5-6 years oil

 

i guess questions is , does oil degrades when sitting in engine doing nothing or even on shelf?

 

How about spark plug? Last time changed mine was 2014 on bike and since sone 6k in miles

[The Bogan]

I would change the oil for sure, cheap insurance 

Oil will breakdown due to fuel and water contamination 

As for the plugs, I would if they are coppers, or just pull them and inspect and check the gap

I would also change the brake fluid and coolant if it is water-cooled 

Cars and bikes, don't like sitting around doing nothing

Preventative maintenance is cheap, fixing broken stuff not so much

[TurboTapin]

Most if not all manufacturers also have time intervals for oil changes. They seem to always be 6 or 12 months. I would never let oil sit 2-3 years in an engine.