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9-1. Specifications
9
Vehicle specifications
NX200t_OM_USA_OM78145U
Fuel information
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gasoline you are
using. If driveability problems persist, try changing the brand of gasoline. If this does not
correct the problem, consult your Lexus dealer.
■ Gasoline quality standards
● Automotive manufacturers in the U.S.A., Europe and Japan have developed a specifi-
cation for fuel quality called the World-Wide Fuel Charter (WWFC), which is expected
to be applied worldwide.
● The WWFC consists of four categories that are based on required emission levels. In
the U.S., category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets, and improves
customer satisfaction through better performance.
■ Recommendation of the use of gasoline containing detergent additives
● Lexus recommends the use of gasoline that contains detergent additives to avoid the
build-up of engine deposits.
● All gasoline sold in the U.S.A. contains minimum detergent additives to clean and/or
keep clean intake systems, per EPA’s lowest additives concentration program.
● Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more informa-
tion on Top Tier Detergent Gasoline and a list of marketers, please go to the official
website www.toptiergas.com.
You must only use unleaded gasoline in your vehicle.
Select premium unleaded gasoline with an octane rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance
and fuel economy. If the octane rating is less than 91, damage to the engine
may occur and may void the vehicle warranty.
At minimum, the gasoline you use should meet the specifications of ASTM
D4814 in the U.S.A.
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