you can download a haynes manual for your model or there should be plenty of stuff on youtube. oil change isnt too bad, theres a plug under your car on the sump, will be a big hexagonal thing pretty obvious. put a big tray under it to catch it and probably take the filling cap off on top of the engine for air flow. oil filter should just unscrew, they can be a bit tight but you can get pretty cheap ratchet type straps to wrench it off. swap it for a new filter once drained replace sump plug and fill to dipstick line. best to run the engine after a change and check the hot running level on the dipstick to make sure its gone through your engine properly.  thats if you need an oil change at all, might just need topping up. you can see how much shit is in your oil when you dipstick it, or just go off how long you last had it replaced, there will be a recommended replacement schedule in the haynes manual and the last change in the service history
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