To me the filter is often overlooked. Buy youreslf a quality filter. I switched to wix a few years back and am very happy with the relults. On my work car my driving is for the most part the same type as I dont beat on it. I change my oil around every 7000 miles. But I also watch my gas milage.
If it starts to drop and tire pressure is ok I dump the oil even if it's at 2000 miles. Little things can tell you what is going on with oil and your engine.
My old honda would get a little noisy when the oil went south and milage would drop. It kills me that my new subaru does not have full gauges.
1987 5.0 LX ( sold in 92)
2011 GT/CS Convertible .Electronics package,
Security package,HID headlights,comfort package