i was down in jersey over the holidays, picked up a bottle of STP complete fuel system cleaner (in the grey bottle) and a bottle of the berrymans b-12 chemtool... really potent smelling stuff!
. anyways i added the STP to the tank for my trip back... and i will use the berrymans for a manifold cleaning before my next oil change. i already tried the cleaning once as suggected in this post, but i want to do it with berrymans.
even not using berrymans, i noticed a significant difference in performance at least... still trying to determine my gas mileage, but it's gotten cold out so i'll have to wait for warmer weather.
