My 2008 Saturn astra will not change you can shift it manual but it will not go on it's own

SOURCE: Change oil on 2008 Saturn Astra

the oil drain plug is on the bottom of the oil pan and the filter is on the top side of the engine toward the front. be ready for a mess!!

SOURCE: can 2008 saturn astra be dinghy towed(4 wheels down)behind an RV?

You can do it if you really wanted to. You'll need to make sure the steering wheel is secured and that the wheels are perfectly straight or you will wreck the front tires. You will be adding unneeded mileage onto the the car by having the front wheels turning. would be better and less costly overall to get trailer that you can put the front end up on.

SOURCE: opel astra headlight adjustment

two screws on each headlight control the direction the headlights are aimed. One screw, usually at the top but sometimes below the headlight, adjusts the headlight up and down. The other screw, located to one side, controls the headlight from right to left. Turning the appropriate screw one direction or the other will change the direction the headlight points.
In order to aim your headlights you need to have a flat vertical surface you can aim your headlights at in front of a level surface on which to park the car. If your driveway is level your garage door is the perfect place to aim your headlights.
The tools you will need for this job are simple. Masking tape is used to mark where the headlights are to be aimed and a screwdriver is needed to adjust the headlights. A tape measure will be necessary to measure the distance of the vehicle to the surface you're using to check the aim and to measure the up and down distances from your marks

SOURCE: Is there any grease zirks on the 2008 Saturn astra?

Probably not. All the vehicles are getting away from putting in fittings. Any time I replace a component I make sure the replacement has grease fittings.

SOURCE: Where is the emissions purge

One of these I believe is right