Ram Trucks 2014 Chassis Cab Commercial - Owner Manual - Manual (Page 375)

General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
• This device may not cause harmful interference.
• This device must accept any interference received,
including interference that may cause undesired op-
eration.
The TPM sensors are regulated under one of the follow-
ing licenses:
United States KR55WY9012
Canada 7812D-5WY9012
FUEL REQUIREMENTS
5.7L Engines
This engine is designed to meet all emissions
regulations and provide satisfactory fuel
economy and performance when using high
quality unleaded gasoline having an octane
range of 87 to 89. The manufacturer recom-
mends the use of 89 octane for optimum
performance. The use of premium gasoline is not recom-
mended, as it will not provide any benefit over regular
gasoline in these engines.
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required. Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you experi-
ence these symptoms, try another brand of gasoline
before considering service for the vehicle.
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STARTING AND OPERATING 373