My manual for the 99 r6 says to use 15w40, but I found some 0w40 synthetic I might wanna try out. I've been doing some research on oils and the first number really doesn't mean much as it's just how light the oil is. So in theory wouldn't a 0w40 oil protect more because it's lighter and will run through the engine easier on start up, at running temp it's all the same anyways at 40. I also hear people racing with 0w40 for increase hp and better mileage? Any thoughts?
^+1 the first gen's are so finicky with oil that you are better off sticking with either 10w or 15w.
right now im using 10 weight oil and that has worked for me. no need to use the 0 weight if you are not racing, and the said mileage increase is not noticeable at all.
i have been consistently getting 43-48 mpg with th 10w, and the occasional 30mpg when i ride WOT
Ive been using 0w40 for about a year now since I replaced the trans. I have no complaints, bike shifts great, operating temp is better, easier starts as well. Just went to the track for the first time this past weekend and have no complaints.
anyone using 0w40?
Linear Mode
