Fork oil - amount, specifications ?

[Jules-C]

I didn't find much difference between 10w and 15w fork oil but renewing the old emulsified fork oil with nice new clean oil of the same viscosity makes a big difference.  Hopefully get mine done next week.

[nickpeh]

Didn't u replaced the top & lower bushing ? Mine pretty worn out at last servicing aound 50 000 miles

[darrsi]

I didn't find much difference between 10w and 15w fork oil but renewing the old emulsified fork oil with nice new clean oil of the same viscosity makes a big difference.  Hopefully get mine done next week.

You're the only person who's tried it and not noticed a difference, yet everyone else felt a huge improvement, including myself, did you definitely put 15w oil in, because i can't understand why?

[Jules-C]

It said Silkolene Pro RSF 15 on the bottle.

[Freza]

If I understood correctly, you tried putting in 15W oil and didn't feel a difference, then you put a new 10W oil and felt a difference ?

[darrsi]

It said Silkolene Pro RSF 15 on the bottle.

It's just strange, 'cos for me it was a vast improvement?

[Jules-C]

When bike was about 7-8 years old finally got around to replacing fork oil with new 10w the grade it said in manual and the handling went from wobbling round corners like every wheel, swinging arm and steering head bearing had collapsed to feeling like it was on rails.  Replaced the fork oil every couple of years since I didn't want it in the same state it had been before and tried 15w for the last change a couple of years ago because people said it was a great improvement but I didn't notice any real difference.

[darrsi]

Mine went from bouncing about to very firm and predictable. I have earlier forks on mine with no adjusters so it's nothing to do with them.
I'm 100kg, plus have the large top box fitted, so handling up front became much much better.