General Information; Fuel Requirements; L And 5.7L Engines (With Automatic Transmission) - Dodge 2009 Challenger Owner's Manual

316 STARTING AND OPERATING

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
operation.
The TPM sensors are regulated under one of the follow-
ing licenses:
United States . . . . . . . . . . . . . . . . . . . . . KR5S120123
Canada . . . . . . . . . . . . . . . . . . . . . . . . 2671-S120123

FUEL REQUIREMENTS

3.5L and 5.7L Engines (with Automatic
Transmission)
The 3.5L and 5.7L engines (with automatic
transmission) are designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high-quality unleaded gasoline hav-
ing an octane range of 87 to 89. The manu-
facturer recommends 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