| Elf Atmo Rallye
Current Formula One Spec Fuel - Unleaded
Drum sizes available: 200litre, 50litre
Applications
- Complies with FIA regulations including Formula One
- Especially blended for naturally aspirated racing engines running at high rpm.
- Thanks to a selection of the most efficient petroleum streams having high combustion speed and improving volumetric efficiency, this fuel offers the best engine performances which can be achieved for natural aspirated engines with respect to the actual regulation.
- Impressive torque and horsepower gains for high compression V8 race engines.
Reccomendations
- Best results can be achieved for equivalent air/fuel ratios in the 1.12 to 1.18 range with reference to pump fuels, because of the oxygenate compounds used in the blending formula, generally speaking it is necessary to increase fuel ratio. Ignition setting must also be tuned in order to reach optimum performances.
- In order to maintain the original properties, and according to Health and Safety regulations of commercial fuels, this gasoline shall be handled and stored in a cool place and always maintained in tightly shut drums.
- The hydrocarbons selected to blend this fuel have in a certain extend, a propensity to knock. Consequently, this fuel is basically not suitable for 2-stroke engines.
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Typical Figures |
(FIM Reg) |
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Density |
Kg/l at 15° C |
0.748 |
0.720 to 0.785 |
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Reid Vapour Pressure |
bar at 37.8° C |
0.570 |
maxi 0.900 |
|
Research Octane Number |
|
100.0 |
mini 95/maxi 102 |
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Motor Octane Number |
|
86.0 |
mini 85/maxi 90 |
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Distillation (°C) |
30%
50%
90%
FBP
% vol at 70° C
% vol at 100° C |
64
79
150
169
42
65 |
maxi 225° C
10 to 47%
30 to 70%
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Oxygen % |
% mass |
3.4 |
3.7% of the weight |
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Benzene % |
% Vol |
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Dienes % |
% Vol |
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Lead Content |
g/litre |
<0.005 |
0.013 g/l maxi |
This fuel contains greater than 1% MTBE and isNOT to be used in watercraft on fresh lakes and waterways.
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