Alcohol in gas to pass smog test?
How much alcohol do you think I should add to my gas tank to pass smog? I just barely failed and the smog guy said to retard the timing as far as possible, throw some new plugs in, use premium gas and buy a screw on gas cap. I also heard that if you add a little alcohol to the gas it could help. So does 5 gallons of premium and on bottle of rubbing alcohol sound about right?
85 CJ7 4.0L/SM465/Dana300/AMC20/Dana30, MPFI,154K miles - 33" 12.5's Pro Comp MT's, one piece axles, Detroit Softlocker rear, Lock Rite front, Warn Hubs, 4.56 R&P, 4" BDS lift, Warn x8000i, Warn winch guard, Hi-Lift, Tuffy console, Four X Dr. rocker guards, Rock Hard sport cage, Kilby OBA with 1.75 gal tank and York 10.3cc compressor, Tube fenders by GenRight Offroad, Fabricated rear bumper and tire carrier.