505
6−1. Specifications
6
Vehicle specifications
nGasoline quality standards
lAutomotive manufacturers in the US, Europe and Japan have developed
a specification for fuel quality called World−Wide Fuel Charter (WWFC)
that is expected to be applied worldwide.
lThe WWFC consists of four categories that are based on required emis−
sion levels. In the US, category 4 has been adopted.
lThe WWFC improves air quality by lowering emissions in vehicle fleets,
and customer satisfaction through better performance.
nToyota recommends the use of gasoline containing detergent additives
lToyota recommends the use of gasoline that contains detergent additives
to avoid build−up of engine deposits.
lAll gasoline sold in the US contains detergent additives to clean and/or
keep clean intake systems.
nToyota recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy−
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.
nToyota does not recommend blended gasoline
lToyota allows the use of oxygenate blended gasoline where the oxygen−
ate content is up to 10% ethanol or 15% MTBE.
lIf you use gasohol in your Toyota, be sure that it has an octane rating no
lower than 87.
lToyota DOES NOT recommend the use of gasoline containing methanol.
