Fuel Requirements - 1.4L/1.4L Turbo Engine; Reformulated Gasoline - Fiat 2016 500 Owner's Manual

298 STARTING AND OPERATING
FUEL REQUIREMENTS — 1.4L/1.4L Turbo Engine
This engine is designed to meet all emis-
sion regulations, provide satisfactory fuel
economy and performance when using
high-quality unleaded "Regular" gasoline
having a posted octane number of 87 as
specified by the (R+M)/2 method. For optimum perfor-
mance and fuel economy the use of "Premium" 91 octane
gasoline or higher is recommended.
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.

Reformulated Gasoline

Many areas of the country require the use of cleaner
burning gasoline referred to as "Reformulated Gasoline".
Reformulated gasoline contains oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The use of reformulated gasoline is recommended. Prop-
erly blended reformulated gasoline will provide im-
proved performance and durability of engine and fuel
system components.