Not to get into a big oil debate...OP said, "i can't find no other oil, just valvoline..". I just gave him some very suitable alternatives. Although the owner's manual recommends 10w-40 it also says,My owner's manual recommends SAE 10W-40 and states that this viscosity is rated between 14 and 104 degrees F. I changed my oil last weekend and used Valvoline SAE 10W-40 motor oil (it was not labeled as being specific to motorcycles). I have only had 3 rides since the change...maybe 60 total miles...but I have not had a problem at all.
So now I'm curious Blue...why is everything you have listed a 15W instead of 10W? Is that generally what is recommended by the community, for best overall protection? I just find it odd that I may not be providing the best protection by following my owner's manual.
Hey Earl - that's too heavy of oil. Use Rotella T 15W-40 conventional or better yet Rotella T6 5W-40 synthetic. I've been using it (T6) for years.Purchase the Valvoline 20W-50 Synthetic Motorcycle Oil, 4-Stroke for less at Walmart.com. Save money. Live better.
All i use.....all i'll ever use....
Amsoil is to expensive these days