You wouldn't go wrong by investing in a Haynes manual.
That will give you the correct oil spec for your car with every other service item required (oil filter, air filter etc) and fitting sequence.
Plus you'll then have the correct list of torque settings listed for the sump plug etc.
The vehicle handbook is the first source of oil spec, but the Haynes manual is a must if you want to do a professional job.
Investment in a torque wrench and socket set will be wise too.