It's extremely easy to change your oil. You drain it first and then remove the cap to the filter. Get the right size socket with an extension, half inch socket for a nut that large. Torque on my 4 is 18 foot pounds. You don't want to over tighten the oil pan bolt or the plastic cap for the filter. Walmart has the filters usually cheaper than the dealer. I can't tell the difference looking at the two.