ostbob wrote:
Sorry, it was 91 octane mention on page 10 of the Banks Automind programmers manual.
I have an email into Banks but sometimes it better to get the straight info from those who are using it. If you're not getting a pinging noise then what ever you're using should be Ok. I just purchased the RV from dealer so I don't know what previous owners used. I don't even know if it has the Automind program but I do know it has the Banks Power exhaust system. I have shifting problems so I was looking into the Automind.
http://assets.bankspower.com/manuals/942/97270-AutoMind_programmer-v4_web.pdf
What is your chassis and year, Ford or Workhorse, the reason I ask is Ford shift issue 2006 or newer is fixed with the 5 Star Tuning.
As to pinging on my V-10 3 valve with full banks system and 5 Star tuning I have had pinging a couple of times in certain areas, could have been bad fuel not sure, so I did add higher octane and it went away and than back to 87 octane, I was told by Mike at 5 Star tuning that the factory spark plugs from Ford need replaced to a hotter spark plug if some pinging is present.