I'm new here, I've been lurking these forums for a while and found some great info! I'm a member of jeepsunlimited.com so this isn't the first time ive been on forums. So how does royal purple 0W-40 stand up against other oils? Does it have the VII's that shear? How well does it clean? Any other recommended oils? I'm using MaxLife 10W-30 now and love it. TIA!