Some sort of 5w-20 conventional. I didn't realize , at the time, that a pushrod v6 could use other oil!
At 3000 mile intervals, because that's what I thought you had to do! The owners manual recommended 5000.
How things have changed! Actually, with the amount of miles I drive now, I would be doing an oil change every other month at 3000 mile intervals :S I like to shoot for once a year for both vehicles.