Originally Posted by rosscopeeko

Maxima has a ratio rite bottle that i just purchased. It basically shows you on the bottle how much oil to mix with the determined amount of fuel. It gives every popular ratio too as in 32:1, 40:1, etc. Good investment for a few bucks. As was stated earlier, use the search function on this site and just start reading. After reading for hours i chose to use Mobil 1 mxt2 or which is now known as Mobil 1 Racing 2t. It works great and i'm happy with it. Just read and pick your oil.

Originally Posted by FruDaddy

Now is the time to choose what oil you want to use. If you do choose to continue using the same stuff the previous owner was running, you should call and ask him what brand and ratio he has been running. Also, find out if the bike is tuned for race gas, pump gas, or a blend of both.
I personally run 93octane pump gas mixed with Motul 800 oil at a 40:1 ratio. This is 3.2 oz of oil per gallon of gas.
The formula for one gallon is: 128/desired ratio=oil amount(in ounces) If you want to mix up more (I usually mix 2.5-5 gallons at a time) multiply 128 times the number of gallons of gas you plan to buy and use that instead of 128.