Is car synthetic ok? Last service I used Mobile Race grade for bikes but it cost like $70, the same stuff for cages costs $39. Is their much difference or are we just paying for the fancy bike sticker?

 

DonĀ“t use car syntetic oil in your bike Coopz!!!! The wear reduction additives in the car oil will stick to your clutch plates causing the clutch to slip!

 

Also, car engine oils aren't meant for gearboxes.
Bike oils are the only way to go, as they are formulated to withstand the crushing that they get between the gears!
I use Motul 3000+ (around $45AU for 4ltrs.) or Motul5000+.
As long as you use proper bike oil and change at least every 5-6K, and a filter every second change, I don't think it makes a huge difference what you use. It just depends on your budget, andwhat's available where you live.
Dave.

 

[sm=bounceybounce.gif]Castrol GP 4T. I find that the bike goes wel on this and does'nt seem to burn off between services.