OK I don't know much about NOS but I got a quick question for ya'll. Say I have a 10 lb bottle of a 100 shot and I push the button in a 1/4 race...how much of the bottle will I use? I know it all depends and blah blah blah blah, but roughly because I know new 10 lb bottles are pretty expensive, and I wanna know about how many sprays you can get?

 

First of all it´s N20, NOS is a brand. You could do about 6-8 runs with a 100shot. You never need to buy new bottles, you just refill them (if I got the Q right)