i use mobil 1 5w30 full synthetic in my subi and change it every 3k miles. are you able to just switch to something else? i think i wanna try RedLine now lol.
You can switch whenever you want! IMO Redline is a little overkill for DD duties, if your not burning any oil with the M1 then I wouldn't worry about it. I ran M1 in my old STI for over 50K and never had any problems. CRZTRBO I would worry more about what viscosity to use rather than brand, since you should change your oil before and after a auto-x day anyways I can't imagine any oil hurting anything in that short amount of time. I would deffinitely switch to a 5-40 or 10-40 for the day. Also, I would also get a oversized(higher cap.) oil filter if you don't already do so.