What type of oil

MY .02 ct.
I used to run 20x50 Castrol GTX and it worked fine. Then Got stuck in heavy traffic and motor got hot fast so tried castrol Syntech blended and it helped in heavy traffic with motor temps but now run Rotella and will keep using it and keep the oil changed regular.
I have used the pure synthetics but dont buy into its worth it because you dont have to change it as often as regular oil. No matter what kind of super oil you are using it still picks up dirt and combustion gases so why not change it often and keep the contaminates and moisture out of your KZs.

Good point: it may be OK to run pure synthetics 7500 miles in new cars and bikes, but older ones will have more "blow by" which means the engine pumps carbon/combustion products into the oil. All oils contain detergent and solvent to keep this sludge from depositing on the engine, but once they are used up, it needs to be changed to keep from gunking up the motor.

Short trip usage is even worse because it creates condensation that combines with combustion byproducts to make acid. All oils have buffers and acid neutralizers, but once they are used up: it's all over. For short trip usage, 3 months interval for oil changes is smart money. They still put that in new car owner's manuals (severe service) as 3 month or 3k miles, whichever comes first.

Thanks SeattleKZ for the question...I was wondering myself since I only got my KZ1000 last fall.

650ed, that makes sense what you said and that mobil oil sounds like the ticket. Thanks!

Lucas also makes a great motorcycle oil. They have both synthetic and semi-synthetic. It is not cheap but I have put to much time into my bike to use cheap oil. You get what you pay for.

I've read dozens of techno-geek "what oil" arguments on many forums. Seems the best oil that the veteran air cooled guys have had excellent success with is Rotella T . The main benifit of Rotella T is the elevated Zinc levels. The Rotella is a great bargain $$ as well. I personally do NOT run synthetics in wet clutch engines.