[svobud]

Think I got a clue to what might have happened. I took the car out this evening and immediately noticed how light the tail-end was acting. Looked down at the gas gauge and it was VERY near empty. Loaded her up with fuel and all is well again. I'd forgotten how tail happy it gets once the fuel level falls under 1/4 tank. Once it was near full - car was acting like it's old self.