RAM 2016 1500 User Manual

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While operating on gasoline with an octane number of

87, hearing a light knocking sound from the engine is not

a cause for concern. However, if the engine is heard

making a heavy knocking sound, see your dealer imme-

diately. Use of gasoline with an octane number lower

than 87 can cause engine failure and may void or not be

covered by the New Vehicle Limited Warranty.

Poor quality gasoline can cause problems such as hard

starting, stalling, and hesitations. If you experience these

symptoms, try another brand of gasoline before consid-

ering service for the vehicle.

6.4L Engine

This engines is designed to meet all

emissions regulations and provide sat-

isfactory fuel economy and perfor-

mance when using high quality un-

leaded gasoline having a posted

octane number range of 87 to 89 as

specified by the (R+M)/2 method. The

use of 89 octane “Plus” gasoline is recommended for

optimum performance and fuel economy.