I have a friend with a Fisker Karma. It's time for an oil change. The Fisker dealer has closed. Because the Karma has a GM engine, we checked with the local Chevy dealer. They are afraid to touch the car because they have no info on what oil, filter, capacities, etc are needed. What are other Karma owners doing? Is an oil change a simple thing? Anybody have "how to" routine maintenance info? Thanks.