oil? how often and what do you use?

[mossaidis]

Sweet! Just bought 12 quarts from summit!

[Bob Roth]

5 - 30mobil, I change filter and oil once a season typically 4 to 6 races. Been doing it for 10 years on a crx, then 4 years on a vtec del sol. never seen a problem, wear or other reason to do it more often.

[ITA_honda]

Fully Synthetic Mobil 1 5W-30
never have had an issue.
I change mine every 2 race weekends runnning double regionals.

Think thats too often? maybe..
but its cheap insurance.
And what does it take to change oil? A few minutes of your time??