Good afternoon ! I used to be a member a few years ago but have been off since then so I needed to reregister, so hello again. Back then I was riding a Suzuki Boulevard, KLR and a few other wet clutch bikes. Now that I'm retired, I sold all and bought a Suzuki Burgman 400 and a Honda Silverwing 600. Both have CVT drives, no wet clutch! I've read about 50 pages of posts but don't find what I'm looking for. I know that any auto oil will work fine but wouldn't an energy conserving be a good choice because it's a slicker type oil? I ride these bikes in colder weather because of the added wind protection so concerned about the flow of a 15-40 oil. Thanks in advance !