Synthetics, Scooter specific vs automotive

[tclhb]

When I visit websites and read about scooter motor oils, they say that they are ok to use in wet clutch designs. From what I have read googling the difference between the wet clutch approved oils and the oils that are not ok to use with a wet clutch, the ones that aren't approved have friction modifiers that can cause wet clutches to slip. Friction modifiers make the oil more slippery.
It seems to me using a scooter specific oil, I am spending extra money to make my oil less slippery for a clutch that shares the oil, which my scooter does not have.
Confession, I am running Motul scooter oil right now not having really read all this before. I think I'm going back to the Royal Purple 10W 40 next change though. I think I spent twice as much for the Motul that I don't need, and may actually not be as good for this application. 
What say you?

[CROSSBOLT]

I have used auto synthetic in all our scoots from 50 cc to 300 cc. Started with Castrol full synthetic and recently switched to Mobil 1 'cause it was CHEAPER! $6 / qt as opposed to over 8 bucks. All scoots worked fine for many miles. The Yager 200i had 17000 miles on it when I traded it for the DownTown 300i.

Karl

[91cavgt]

Coming from an auto/diesel repair background, the primary importance is checking and changing the oil on a regular basis regardless of the oil used.  Now, if you plan on really pushing your scooter hard like I do then the better synthetic oils will help to protect the engine and provide lubrication without the oil breaking down during long periods of high engine stress. 

I personally use Amsoil 10w40 synthetic scooter oil.  The extra cost to me is worth it even though I change the oil every 1000 miles after the initial break in oil changes.  I've ridden my Like at full throttle for right at an hour non-stop, so yeah, I ride it hard! 

[CB024]

I always run full synthetic in air cooled engines.

[Vivo]

Regardless if it's synthetic or mineral... Scooter specific oilsor with the JASO MB rating is best for the scoot with dry clutch.... JASO MA are for those motorcycles with wet clutches... 

Synthetic = longer service intervals
Mineral = shorter service intervals

[tortoise]

Some oil comparisons . . heavy duty . . synthetics.

[ophelia]

For what it's worth, I've never had any problems running automotive energy conserving oil in my wet clutch bike, and I've tracked it a few times. Motorcycle oils have molybdenum anyways in small amounts to reduce wear. I've experimented with different oil weights too. But your mileage may vary.

In the significant other's bike, I use Motul Scooter Power 4T 5W40. I don't experiment with her bike.