8-1. Specifications- Page 376

376

8-1. Specifications

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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.

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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.

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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.

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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 [

]), E50 (50% 

ethanol [

]), E85 (85% ethanol [

]) 

(which are only some examples of fuel 

containing more than 15% ethanol).

●

If you use gasohol in your vehicle, be sure 

that it has an octane rating no lower than 

91.

●

Lexus does not recommend the use of 

gasoline containing methanol.

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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.

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If your engine knocks

●

Consult your Lexus dealer.

●

You may occasionally notice light knock-

ing for a short time while accelerating or 

Fuel information

You must only use unleaded gaso-
line.
Select premium unleaded gasoline 
with an octane rating of 91 
(Research Octane Number 96) or 
higher required for optimum 
engine performance and fuel econ-
omy.
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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