short trip, start stop driving pattern can try W20 EO, not if you have many NSHW trip. At higher temerature W20 EO have less than expected protection, your FC may be good but your Engine wear and tear is higher. W30 is the min limit for me, I only use W20 oil to flush Engine.
as for 0W or 5W, it is a bit confusing since we don't drive in winter condition and not all 0W EO have the same spec. IMO best to look for lower "Kinematic Viscosity @ 40°C, cSt" value, lesser time/fuel needed to warm up the EO. Good for driving pattern with many cold start.
Wow, just saw the KIC EO selling at $122, must be good stuff.