2012 Lexus HS 250h Owners Manual - Page 568

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6-1. Specifications

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Recommendation of the use of cleaner burning gasoline

Cleaner burning gasoline, including reformulated gasoline that contains oxygen-

ates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many

areas.

Lexus recommends the use of cleaner burning gasoline and appropriately blended

reformulated gasoline. These types of gasoline provide excellent vehicle perfor-

mance, reduce vehicle emissions and improve air quality.

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Non-recommendation of the use of blended gasoline

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If you use gasohol in your vehicle, be sure that it has an octane rating no lower

than 87.

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Lexus does not recommend the use of gasoline containing methanol.

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Non-recommendation of the use of gasoline containing MMT

Some gasoline contains an octane enhancing additive called MMT (Methylcyclo-

pentadienyl Manganese Tricarbonyl).

Lexus does not recommend the use of gasoline that contains MMT. If fuel contain-

ing MMT is used, your emission control system may be adversely affected.

The malfunction indicator lamp on the instrument panel may come on. If this hap-

pens, contact your Lexus dealer for service.

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If your engine knocks

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Consult your Lexus dealer.

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You may occasionally notice light knocking for a short time while accelerating

or driving uphill. This is normal and there is no need for concern.

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Use only gasoline containing a maximum

of 10% ethanol.

DO NOT use any flex-fuel or gasoline that

could contain more than 10% ethanol,

including from any pump labeled E15, E30,

E50, E85 (which are only some examples

of fuel containing more than 10% ethanol).

DO NOT use gasoline

containing more than

10% ethanol.

(15% ethanol)

(50% ethanol)

(85% ethanol)