Synthetics and dino oils are 100% compatible, so you can mix them, change back & forth between dino & syn, etc. all you want and it's completely safe. This is a common question and can be verified at any oil manufacturer's website under their FAQ's.

And don't waste you money on a oil scavenger system- it's a big-money solution for a problem that doesn't exist...

 

Pretty much the same as everyone else. Mobil 1 V-Twin 20/50 in the Engine and Primary, Mobil 1 75/90 in the tranny.

Engine- 5k
Primary/Tranny- 10k

 

I change then all at the same time. (every 5k or less)

 

5K (use high quality oil filter)and 10K on the trans/primaryfor me unless the ol'lady takes the notion to boot me out to the garage on a rainyday. Then I change stuff and clean the scoot, ignoring her car.Usually means I get Sunday to myself too - women[>:].

 

I change all three holes out between 3,000-4,000 miles ,oils cheap and i probally could go longer in between changes,but i choose to do them all together. im using mobil 1 v-twin 20w50 engine ,mobil 1 75w90 trans, and either HD primary oil or syn 3 in the primary(have some left over after switching to mobil 1) for me it gives me a reason to lay down and look under the bike for any problems ,look things over.

 

I use Red Line products in our bikes. I change motor oil every 5,000 / oil filter every 2,500. Primary and transmission I change at 10,000 or before first ride in the spring.

Ride Safe,

Mike

 

Change the motor oil when needed,the other 2 holes in the fall before storage along with the motor oil.

 

Change all 3 same time at 5k miles.Use Klotz Big twin synthetics

 

change motor,trans.&primary at same time every 3000 with sinc 3 if it needs it or not its my baby .

 

5k for eng. 10k prim. around 10k or longer trans.
back-up bike(sporty)once a year and other hole every other year.