Hey guys, deep breath!
We in Calif have been dealing with this for decades befor anyone else.....in 1974 we got the cat converters, and unleaded gas was the new thing....eventually reducing the lead content to under 2cc's per gallon, Phase 1, which was implemented in 1991, eliminated lead from gasoline and set regulations for deposit control additives and reid vapor pressure (RVP). Phase 2 CaRFG (CaRFG2) set specifications for sulfur, aromatics, oxygen, benzene, T50, T90, Olefins, and RVP and established a Predictive Model. Phase 3 CaRFG (CaRFG3) eliminated methyl-tertiary-butyl-ether from California gasoline.
In summary, their is no additive to protect your rubber components....if you use conventional rubber hoses for fuel you either have to replace them every 5 years or replace them with EFI spec'd hose....it will handle anything you run through it. Second item, carb accel pumps...they typically have to be replaced with alcohol type units....it's really no big deal...sometimes as with all blended fuels, a little adjustment of the carb & timing is required...but that is it.....really a no big deal!
Last edited by beechkid; 11-30-2012 at 07:50 PM.