Im posting for a friend, he has been using a intercooler sprayer kit for about a month now on his talon tsi. and has a half full bottle of n20 left and was wondering if he could just fill the remainder of the bottle with CO2 or if he should empty the tank out first. thanks

 

does anybody know if it should be a prob?

 

yeah, he just dumped the gas and filled it up with c02 thanks for the help!