vapors, I lived in Laguna for 7 years when we went from 100 octane to garbage gas. It's the MTBE that kills it for you in winter. I never could understand how worse mileage equates to better emissions. And I applaud your wearing a shirt. Even in summer.

 

hehe, thnx! I know about the whole MTBE fiasco here, I believe the trend now is towards using ethanol instead of MTBE as most if not all 76 stations are using that b/c of the whole debate of MTBE seeping into ground water and causing some bad things to happen. It has been discussed that the switch to ethanol is more expensive as MTBE is cheaper than ethanol, but who knows. I just want better gas milage and dropping from 250-285 a tank to 200-230 is pretty crappy IMO. I just might retire the s2000 to sunday drives and track events and save up for a civic hybrid...650 miles out of tank. I almost began to think my primary 02 sensor was going out of whack or the ecu wanted me to suck it on filling up every 4 days instead of once a week.