about being sure you can open the fill cap FIRST. It would be a bummer to drain out all the lube only to find that you could not get the "filler" cap to unscrew. You sure could not get new lube to pour in from the bottom!!! Can you spell TOW-TRUCK?

Good jack stands should be used because you will have to be under the car and tugging hard to get the drain and filler caps to break free and turn.....Don't let a car fall on you.

It's not that hard----but sounds like you've never done this service before. Let's be safe.

DanielW