Why do you want to save the old oil? And the V8 filter is NOT upside down.
If you really need to do that. I would suggest you to drain the oil first and recycle it after you replace the filter.
<<I don't like driving around with my headlights on during the day. Not to mentioned the shortened bulb life that might produce. I'm aware of the auto-off feature. I had mine reprogrammed to shut-off immediately upon opening the driver's door instead of 30 seconds later.>>
Rando,
Is this...