What motor oil do you use and why

Just wondered what oil everyone else uses and why. I was using Red Line, got too expensive, switched to Mobil 1 and developed leaks, now using Valvoline 20W-50 Racing. Hope the leaks stop. Interestingly, the Mobil 1 seemed to allow longer time intervals between valve adjustment compared to Red Line.

[This message has been edited by movin (edited 05-18-2001).]

[This message has been edited by movin (edited 05-18-2001).]

[This message has been edited by movin (edited 05-18-2001).]