beautypg.com

Engine runaway, Fuel requirements, Fuel requirements (gas engines) – Dodge 2007 Ram Chassis Cab User Manual

Page 327

background image

ENGINE RUNAWAY

WARNING!

In case of engine runaway due to flammable fumes
from gasoline spills or turbocharger oil leaks being
sucked into the engine do the following to help
avoid personal injury and/or vehicle damage:

1. Shut off engine ignition switch.

2. Using a CO

2

or dry chemical type fire extin-

guisher, direct the spray from the fire extinguisher
into the grille on the passenger side so that the spray
enters the engine air intake.

The inlet for the engine air intake is located behind the
passenger side headlamp and receives air through the
grille

FUEL REQUIREMENTS

Fuel Requirements (Gas Engines)

The 5.7L engine is 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 routine use of premium
gasoline is not recommended. The use of premium
gasoline will provide no benefit over high quality regular
and mid-grade gasolines, and in some circumstances
may result in poorer performance.

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.

STARTING AND OPERATING

327

5