ELF PERFO 100 is the fuel of the ELF racing range that has the best octane numbers
technically possible for an unleaded and non-oxygenated fuel. This fuel can replace
Avgas for race cars and historic cars.
ELF Research has combined its expertise with the will to push engines and technology
beyond known limits, to develop an atypical fuel: ELF PERFO 100.
By selecting compounds with outstanding resistance to knocking, ELF PERFO 100
allows with turbocharged, naturally aspirated, 4-stroke or 2-stroke engines, to operate
in ranges hitherto inaccessible to other unleaded fuels without oxygenated
compounds. Supercharging pressures and compression rates can be extended to the
engine’s mechanical limits.
Engine mapping must be optimised (Air/Fuel ratio, ignition sequence…) to obtain full
benefit from this product.
ELF PERFO 100 can be mixed with the lubricant ELF HTX 909 or with ELF HTX 976+,
for even more efficiency.
If oxygenated compounds are allowed, we recommend to use ELF PERFO 105.
Conservation : to maintain its original properties, in accordance with the Fuel Health
and Safety regulations, ELF PERFO 100 should be handled and stored in the shade
and sheltered from adverse weather conditions and must be perfectly sealed in its
drum after each use, in order to avoid losing the lightest fractions.

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