Good Idea. Do the basic tuneup first, Try to stick with OE(AC-Delco) stuff as you won't have any doubts as to whether you choose the right stuff to put in your car. Do the basics(plugs, wires, air filter, gas filter, pcv valve). Change the Oil/Filter. The Purolator Filter and Penzoil 10W-30 is good. I thought a liter was a bit more than a quart. So after you drain the oil and change the oil filter, I would add only 4 liters back in, start the engine(check for leaks) and then add enough oil to bring it up to the "Full" mark on the dip stick. An alignment at this time is also a good idea. Have them balance your tires too. Make sure you have the correct tire pressure in all(including your spare) tires. You also should check the condition of your the Serpentine Belt(the belt that drives the alternator, etc). Also, you may want to change the O2 Sensor if that has not been changed in quite awhile and possibly change the transmission oil and the coolant in your radiator later on too. Good Luck and Welcome to the Club.
2006 Salsa Vibe
2002 Snap Orange Beetle - Turbo
1991 Olds "Orphaned" 88 - Donated to Science!