grady style 
my caprice failed emissions.
i got some guaranteed to pass
the instructions say use it in a tank, and then after the tank has gone empty, fill up and get it tested again
i suspect i should actually go back on the rollers while it is in the gas
please advise

my caprice failed emissions.
i got some guaranteed to pass
the instructions say use it in a tank, and then after the tank has gone empty, fill up and get it tested again

i suspect i should actually go back on the rollers while it is in the gas

please advise
