Always Amoco/BP 87 octane (best fuel mileage for my car). I don't like to switch brands of fuel. I don't trust it, and I don't like to mix the additives that different stations add. Kwik Trip fuel always made my car ping. If I can't get to a BP, I'll go to Mobil. Never anything else though.
I use Mobil Drive Clean oil, changed every 2,000 miles...keeps everything clean and responsive.
Those of you who use Pennzoil....beware. Pennzoil Z7 (I believe) has a parafin wax base and can coat rods and bearngs if used for a long period of time, leaving everything looking like a candle was dripping on it.