retiredfireman
Senior Member
So- I usually run one of the 87 tunes, unless I'd really like to burn up the petrol, which is my dilemma- with the 93 octane gas at about 50-60 cents a gallon higher, is there an additive to raise my octane in the tank, maybe 1/2 tank or so- that will allow me to switch to the 93 tune?
short version: can I raise my octane in the tank without a full fill up?
short version: can I raise my octane in the tank without a full fill up?