Smogrunner

iTrader: (5)

I like to add a couple of gallons high octane gas to my tank to make my 91 octane ca **** to 93-94 octane. I always use sunoco 104 UNLEADED, but for the same price I could get 112 octane LEADED and I would save alot of money as I wouldn't have to mix as much to get the same octane. IS MIXING TWO GALLONS OF LEADED WITH 12 GALLONS OF UNLEADED GOING TO HURT MY ENGINE OR CAUSE ME PROBLEMS??? I need an answer quick as I am going to buy my fuel today before the store closes.

zlancer

iTrader: (1)

bad....will ruin your 02 sensors and your cat

Guru_Del

iTrader: (5)

agreed, if you have cats or O2 sensors you will kill them.

if you are running without cats and have no 02 sensors i say rock the kasbah.

fastevo2004

Who needs a cat or 02 sensor anyway.