2000 Ford Focus Owner's Manual - Page 220

2000 Ford Focus Manual

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Maintenance and care Octane recommendations Your vehicle is designed to use regular" unleaded gasoline with an (R+M)/2 octane rating of 87. We do not recommend gasolines labeled as Regular" that are sold with octane ratings of 86 or lower in high altitude areas. Do not be concerned if your engine sometimes knocks lightly. However, if it knocks heavily under most driving conditions while you are using fuel with the recommended octane rating, see your dealer or a qualified service technician to prevent any engine damage. Fuel quality If you are experiencing starting, rough idle or hesitation driveability problems during a cold start, try a different brand of Regular" unleaded fuel. Premium" unleaded gasoline is not recommended (particularly in the United States) because it may cause these problems to become more pronounced. If the problems persist, see your dealer or qualified service technician. 87 (R+M)/2 METHOD 220

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Maintenance
and care
220
Octane
recommendations
Y
our
vehicle is designed to use
±regular" unleaded gasoline with an
(R+M)/2 octane rating of 87. We do
not recommend gasolines labeled
as ±Regular" that are sold with
octane ratings of 86 or lower in
high altitude areas.
Do not be concerned if your engine
sometimes knocks lightly. However,
if it knocks heavily under most
driving conditions while you are
using fuel with the recommended
octane rating, see your dealer or a
qualified service technician to
prevent any engine damage.
Fuel quality
If you are experiencing starting,
rough idle or hesitation driveability
problems during a cold start, try a
different brand of ±Regular"
unleaded fuel. ±Premium" unleaded
gasoline is not recommended
(particularly in the United States)
because it may cause these
problems to become more
pronounced. If the problems
persist, see your dealer or qualified
service technician.
87
(R+M)/2
METHOD