Lexus IS 250C 2014 Manual page 572

6-1. Specifications
NOTICE
Notice on fuel quality
■
Do not use improper fuels. If improper fuels are used the engine will be damaged.
●
Do not use leaded gasoline.
●
Leaded gasoline can cause damage to your vehicle' s three-way catalytic convert-
ers causing the emission control system to malfunction.
Do not use gasohol other than that stated here.
●
Other gasohol may cause fuel system damage or vehicle performance problems.
IS250C: Use of unleaded gasoline with an octane rating lower than 91 may result
●
in engine knocking. Persistent knocking can lead to engine damage and should
be corrected by refueling with higher octane unleaded gasoline.
IS350C: Use of unleaded gasoline with an octane rating lower than 91 may result
●
in engine knocking and significantly reduced performance. Persistent knocking
can lead to engine damage and should be corrected by refueling with higher
octane unleaded gasoline.
Fuel-related poor driveability
■
If after using a different type of fuel, poor driveability is encountered (poor hot start-
ing, vaporization, engine knocking, etc.), discontinue the use of that type of fuel.
When refueling with gasohol
■
Take care not to spill gasohol. It can damage your vehicle's paint.
572