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Old 08-15-2014, 09:52 AM   #13
route66
 
Drives: 66 coupe 78 pace car 2014 coupe
Join Date: Jul 2013
Location: ca.
Posts: 93
This is what I have in the owners manual for octane rating statement. Under what section has anyone found the lower
octane ratings recommended.
Fuel
TOP TIER Detergent
Gasolines.
Use premium unleaded gasoline
with a posted octane rating of 91 or
higher. If the octane is less than 91,
you could damage the engine and
may void your vehicle warranty.
If heavy knocking is heard when
using gasoline rated at 91 octane or
higher, the engine needs service.
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