A few days back I posted regarding my 88 245A feeling sluggish. I had replaced the fuel pre-pump about 6 weeks earlier, it ran peppier, then seemed sluggish again. After checking suggestions from Brickboarders and not finding mechanical issues I think I solved the problem: It's the gasoline! To make a long story short, winter formulations have lower energy content. I usually run 89 mid grade (Shell or Chevron). I added about 3 gallons of 91 premium to top off the tank, drove it awhile and the pep returned. With a meager 114hp, anything that helps is welcome...