Don't know about the mobil 1 filter I use Pure One filters. But definitely need the 5w-20 for the MDS system to operate on the Hemi. And as was suggested by others good idea to do a change at 500-1000 miles. I do 1000 but either way if there are any real metal particles from breakin or sealant or gasket residue it is a good idea. Besides it gets you over to conventional sooner.
2011 WK2: Limited, 4x4, Hemi, 730n, Class IV Tow, Brilliant Black. 30% Ceramic Tint, Lockpick, LED DRL, LED License Plate, LED Backup, LED Liftgate (all), Axle/Transfer Case OEM add-on skid plates, Sharkfin Antenna.:thumbsup: