Pre. Oil gets contaminated and acidic after use. You use fresh oil so that acidic oil isnt sitting for months on seals and gaskets........
The next fantasy to dispel is having to change it again in the spring. No need oil doesnt spoil by its very nature its millions of years old (dinosaurs right?) Just use whatever flavour you prefer in the fall tuck your baby away and come spring your ready to roll.
Pre. Oil gets contaminated and acidic after use. You use fresh oil so that acidic oil isnt sitting for months on seals and gaskets........
The next fantasy to dispel is having to change it again in the spring. No need oil doesnt spoil by its very nature its millions of years old (dinosaurs right?) Just use whatever flavour you prefer in the fall tuck your baby away and come spring your ready to roll.
Maybe you can dispel another myth I've heard....that leaving oil in a bike (after a fresh oil change) all winter and then starting it up in the spring stirs up all kinds of **** that can (unlikely) damage the engine.
Nope. Nothing will collect in the oil except maybe a teeny tiny bit of moisture, which will evaporate pretty quick on your first ride.
However! Frequently starting it through the winter will build up this moisture, as the engine never gets warm enough to get rid of it. So don't do it!
Lots of good info in replies already...I've heard recommendations for each, is this a preferential thing?
I've kinda been of the opinion that it doesn't make sense to change the oil before storage since its just gonna break down over winter anyways.
Thoughts?
what if i just changed the oil like 400 km ago?...should i still put in fresh oil?...i have an '09 kawasaki vulcan 500, carbureted if that makes a difference...
When it's due? For me, 7-9,000Km, depending on several factors. Never sooner than 6, never later than 10.
That seems a little long to me..... but if your service manual says that, do what you will. Mine says to change every 6,000 km's or 6 months (excluding winter storage).
Whatever your bike is... change according to the recommended service table in your owner's manual. Unless you're riding in race/track environments, in which case should be much sooner (after every race weekend or every second track day).
If I don't follow the recommended factory specs, it's because I'm changing oil sooner, never later.