User Manual - Page 260

For 2019 ALFA ROMEO 4C SPIDER.

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WARNING!
To avoid the risk of forcing the vehicle off the jack,
do not tighten the lug nuts/bolts fully until the
vehicle has been lowered. Failure to follow this
warning may result in personal injury.
FUEL REQUIREMENTS 1750 TURBO
The 1750 turbo engine is designed to
meet all emissions regulations and pro-
vide excellent fuel economy and perfor-
mance when using high-quality premium
unleaded gasoline with an octane rating
of only 91 or higher.
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 ser-
vice is required.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of gasoline (with the
appropriate octane rating for your engine) before con-
sidering service for the vehicle.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gaso-
line”. Reformulated gasoline contains oxygenates and
are specifically blended to reduce vehicle emissions and
improve air quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will provide
improved performance and durability of engine and
fuel system components.
Materials Added To Fuel
Besides using unleaded gasoline with the proper octane
rating, gasolines that contain detergents, corrosion and
stability additives are recommended. Using gasolines
that have these additives will help improve fuel
economy, reduce emissions, and maintain vehicle per-
formance.
Designated TOP TIER Detergent
Gasoline contains a higher level of
detergents to further aide in mini-
mizing engine and fuel system de-
posits. When available, the usage of
258 TECHNICAL SPECIFICATIONS
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