I noticed my oil looked a little low two days ago. I added less than 1/2 a quart to bring it up to the full line with the bike sitting level. Yesterday on the way to work, I lost 5th gear. Shifting up from 4th or down from 6th had the same affect. 5th gear is the same as neutral. My question is, If I over filled it slightly could that cause the transmission to not go into 5th gear. I have 46,000 miles on my 08 Versys and have used synthetic sport bike 10w40 at every oil change. Last night I changed the oil and filter. We will see if it works any better. If not, I'm upgrading to a Ninja 1000 with hard bags.