Re: 4.7 owners- which SC tune are you running?
87oct advanced tune with tranny options set to SC, which seem to be just right for me.
89oct ( 10% ethanol ) is cheaper and largely abundant here in the midwest, I fill up with that.
2006 65th Anni. Grand Cherokee 4x4 in black w/ 4.7L V8
Installed- HID 5000k kit in fogs, Superchips programmer,AFE stage 2 intake, Jet 180* Thermostat, De-badged, Flyin' Ryan Modified Throttle Body - Ported then bored out. Magnaflow muffler. Rola Roof basket, Stubby Antenna, bquiet sound dampening for the rear deck. Rigid led spots on rola rack.