Fuel Information - Lexus NX 300h 2020 Owner's Manual

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8-1. Specifications

Fuel information

You must only use unleaded gaso-
line in your vehicle.
Select octane rating 87 (Research
Octane Number 91) or higher. Use
of unleaded gasoline with an octane
rating lower than 87 may result in
engine knocking. Persistent knock-
ing can lead to engine damage.
At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A.
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.
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 pro-
gram.
Lexus strongly recommends the use of
●
Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gaso-
line and a list of marketers, please go to
the official website www.toptiergas.com.
■ Recommendation of the use of low
emissions gasoline
Gasolines containing oxygenates such as
ethers and ethanol, as well as reformulated
gasolines, are available in some cities.
These fuels are typically acceptable for use,
providing they meet other fuel require-
ments.
Lexus recommends these fuels, since the
formulations allow for reduced vehicle
emissions.
Non-recommendation of the use of
■
blended gasoline
● Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30 (30% ethanol
nol ), E85 (85% ethanol
B
are only some examples of fuel contain-
ing more than 15% ethanol).
● If you use gasohol in your vehicle, be sure
that it has an octane rating no lower than
87.
Lexus does not recommend the use of
●
gasoline containing methanol.
Non-recommendation of the use of gas-
■
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing
MMT is used, your emission control system
may be adversely affected.
The malfunction indicator lamp on the
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■ If your engine knocks
Consult your Lexus dealer.
●
● You may occasionally notice light knock-
ing for a short time while accelerating or
driving uphill. This is normal and there is
no need for concern.
), E50 (50% etha-
A
) (which
C