2004 Lexus LS430 with 119K miles. Factory oil spec is Dyno 5W30 in 5K miles. Current oil is Quaker State Full Synthetic 5W30, changed at 115K with Fram Ultra 3600 large filter back in Nov 2018. Most of the mileage has been short trips. Probably 90/10 local/highway. I made sure I took it to freeway for 30 mins drive at least once a month. Now I have started taking it out daily so that I can have my next oil change. Haha. Usually I don't go over a year but this has been the longest 16 months. For next oil change I don't to go out and buy anything new. This is what I have. SuperTech ST3600 3" Spin-on Oil Filter. (It has 6 holes and is white so I believe it is made by Wix?) Oil choices... 1. G Oil Full Synthetic 5W30 2. Vavoline NextGen 5W30 Dyno 3. Quaker State 5W-30 Dyno 4. Shell Rotella Synthetic Blend T5 10W-30 What oil do you recommend? Should I leave the Fram Ultra in there or replace with ST3600? (I have always changed the filter in past) Change now or change at 120K? (Wait for another 1K) I am planning to put about 500 miles a month going forward. That should make next oil change in about 1--12 months.