Hey there. Just bought my 1993 SC400 last Tuesday. I love it. It has had conventional oil in it it's whole life. What do you all think about switching to synthetic like mobil 1? I'm thinking about it. I went on a trip this weekend, and had quaker state synthetic blend put in. Is it worth putting mobil one next oil change at this point? the car has about 103,000 miles right now, and runs like new of course. And what about oil filters? I've seen people on here or another forum saying it'd be best idea to get the OEM filter.