Originally Posted By: VicL
Originally Posted By: ddtmoto
I was using Rotella T5 5/40 and loved it in all my bikes, but when the zinc and others were reduced in vertualy all our oils, like in the T6 shell, the shifting suffered.
Finally somebody else picked up on a complaint I've had with the Rotella products. I started using Shetll Rotella Synth 5W-40 about 2 years ago and thought it was great. Then all of a sudden the shifting was suffering, no matter how new the oil was. I didn't know what the heck had happened, and for some reason it still gets rave reviews on a lot of motorcycle boards. But its a noticeably worse product now, if you ask me. I've been looking for something that works the way it used t0.... used to have nice buttery shifts.
Vic
Why not try Rotella T 15W40?
I use SRT 15W40 in a KLR650, a Valkyrie and a couple of ATVs, one with a manual transmission. Works fine for my applications. After 3000 miles or so, the KLR's shifting will become a bit less smooth, but by no means balky. The Valkyrie doesn't seem to care regardless of miles on the oil.