How long will a bottle last befor refill?

[Bob Verwold]

Originally Posted by Lou SG2340

I can get several races out of mine running a t stop & shifter. The biggest problem is leaks. I close the bottle after every pass. Have a note on the dash to remind me to open it. Having a spare bottle is a good
idea

Been there and done that....After several times of forgetting to turn off or on I got the shutoff valve that's wired into the ign . When the ign is off the air is off / ign on air is on and no more forgetting.......... But I'm an old man and have a habit of forgetting.............