Well I have been doing a ton of research, reading everything I can find about oil, oil quality and best brands. I know this topic always turns into a heated debate. I am going to be putting my bike away for winter and want to change the oil before I do. I have 2000 miles on my K8 600 and have been using Suzuki brand oil for all of the services up till this point. While I am confident the Suzuki brand is good, I am sure there is better. I am looking for a synthetic to help with smoothing out shifts and offering good cold and hot weather protection. I know all of the major brands of synthetic are good and meet all of the necessary standards. I cant find a single thread or discussion indicating that poor quality oil lead to motor or clutch failure on these bikes, seems like most people either wreck their bikes or sell em before they even get enough miles on them to think about long engine life. I plan on keeping my bike a long time, so I want to make sure I get good protection out of my new oil choice. I dont want to spend a fortune, I can change the oil frequently as well, so extended drain intervals arent appealing to me. Can anyone point me in the right direction? Like I said I dont want this to turn into a debate, just curious as to what everyone else is using and just factual info (such as: made valvetrain quieter, shifts smoother, easier cold starts, etc).