One thing i do know is oil.
Most any oil you use will be just fine as long as its a FULL synthetic and you change it at least every 4K miles (in an ITR). Ok now the weight. On a 5w-30 oil, the 5w is explaned by how easly the oil flows at cold temp or the leak down rate. This makes 5w oil better in very cold start vehicles, very cold, I mean alaska cold. 10w is great also it just can't flow as well at very cold temps. You really only see a differrence at about 10 deg. F. Now for the 30. This is basicaly how thick the oil trys to become, or actually trys to stay, after the car is warmed up. The choice in weight also depends on the car. newer cars have tighter bearing, valve seel and piston to wall clearances. Anyways most hondas are going to work best with 5w or 10w 30. Oh ya the best oil is RED LINE full synthetic :arrow: