I've never tried it for changing oil in a Saturn, but the drive-up
ramps are good for other stuff and a lot less work (and much more
secure) than jacking. Only problem for changing oil is that the car
will be tilted to the back, which may interfere with draining.
I don't know if I would go so far as to say they are more secure than
jacking......
Maybe when they're up there, but definitly not getting there.
The ramps are a much bigger project then jacking is, every time. Plus, someone
not used to it can drive right off the back of them.......someone not good with
a stickshift will have trouble.....sometimes they like to slide on smooth
concrete floor......nose drags on them(have to run up on a block of wood
first). Throw in a little dew or water on them and you won't get up them
without a fight........
That said, I use the ramps/jack about 50/50......probably because a lot of the
time I'll rotate the tires at the same time, etc. When you jack, make sure you
use jackstands on both sides. Remember you will be *under* the car. Hydraulic
jacks are known to let down. I often don't use a jackstand if I'm not gonna be
actually under the car(which is a bad practice too...) but when you're gonna be
under, DEFINITELY use them!