Whats the reason for the 5.7 auto using 89 octane and the manual needing 91?
3 30below · Registered Joined Dec 16, 2011 · 53 Posts Discussion Starter • #1 • Jan 28, 2014 Whats the reason for the 5.7 auto using 89 octane and the manual needing 91?
Triz · Registered Joined Mar 10, 2012 · 2,018 Posts #2 • Jan 28, 2014 (Edited) Read this thread: http://www.challengertalk.com/forums/f37/why-different-octane-recommendations-126146/
Read this thread: http://www.challengertalk.com/forums/f37/why-different-octane-recommendations-126146/
1QKRT · Registered Joined Nov 13, 2013 · 214 Posts #3 • Jan 28, 2014 I don't know the reason,but my M6 needs at least 91 or above. I usually put 93 in it.
