How many do their own oil change and worst vehicle to do them on?

[MnM]

I change ours. Two Chevys and 1 Ford. All easy.

[Texas Grown]

My two trucks, yes. I do the changing most of the time. My KIA Spectra, I usually let someone else do that one. It's hard for me to get under one, even with a floor jack and jack-stands. Harder for me to get off the ground once I'm down there.