It's a shame you still have this problem. But, I would not abandon the belief that fuel contaminants are causing your trouble, yet. I would add some Techron, toss in a bottle of Heet and drive. If you note a positive benefit from this as you drive, then you are likely looking at a recurrent contamination problem and should change gas stations. Also, if you are mechanically inclined, look at the plugs, check your electrical connectors for corrosion and tight fit, do all those cheap check-outs that help rule out little glitches.

I once owned a nice Toyota Corolla FX16 that was a wonderful car (wish I still had it). However, during the winter (lived in Colorado) it became a little snot to drive. Bucking and snorting all the time. We had to use the alcohol blended gas after November until March and every year between November and March the car bucked and stalled and was miserable to drive because the alcohol blend carried so much crud and water into the fuel system. Once Spring was sprung everything returned to normal, the car ran fine again and gas mileage went back to normal. During the deep parts of winter we would get some warm days, also regular as clockwork, in January. On those days the car was the most rotten little beast on the road because the fuel was contaminated and also was vaporizing so fast (higher temps) it would stall every time I let out the clutch.

Just a thought, hope it helps,

230/8