91 Octane wont hurt anything though if your running a 91 tune through superchips. I have been running either 91 or 93 octane in my 4.7 XK for over 3 years now with now problems. Well beside the hole it makes in my wallet.
91 Octane wont hurt anything though if your running a 91 tune through superchips. I have been running either 91 or 93 octane in my 4.7 XK for over 3 years now with now problems. Well beside the hole it makes in my wallet.
2007 4.7 Liter XK | Front Modified OME HD Lift | Rear 4" Superlift | JBA UCA's | Rusty's Rear Adjustable Track Bar | Rysty’s Adjustable Upper and Lower Rear Control Arms w/Heim Joints | Mickey Thompson Classic III 17x9 Wheels | 315/70R17 Goodyear Duratracs | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front Electronic Locker | Rear Heat/AC Delete
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