b.
c.
d.
e.
f. g.
h.
Petrol or Diesel in compliance with FIA Appendix J Art 252, Article 9. Or, for Karting, Petrol in accordance with CIK Technical Regulations Article 2.21.
LPG( Liquefied Petroleum Gas) which is of 99 % wt. min. hydrocarbon composition and that is entirely gaseous at atmospheric temperature and pressure. Complying with BS EN589.
Diesel Automotive Gas Oil( DERV), commercially available, complying with BS EN 590 and EU Directive 98 / 70 EC( see Table below).
High Ethanol Content Fuel in compliance with FIA Appendix J Art 252, Article 9.3- Only permitted to be used with the specific approval of the ASN.
Bio Diesel – Commercially available and complying with BS EN15940
Methanol. Methyl Alcohol CH3OH. This is a clear colourless liquid, miscible with water acetone and other ketones, the esters, aromatic and highly unsaturates hydrocarbons, and castor oil. It is not miscible in all proportions with straight-run petroleum spirit or mineral oil. B. P. 64.7 ° C, Specific Gravity 0.796, Flash Point 32 ° F. For Speed Events, British Standard 506 with an allowance of up to 10 % Acetone, is permitted. It must include an ASN approved additive which provides a distinguishable colour and smell when burning. The maximum permitted volume of additive within the fuel is 0.2 %.
Hydrogen in compliance with FIA Appendix J Art 252, Article 9 – Only permitted to be used with the specific approval of the ASN.
1.8. SPECIFICATIONS TABLE
PERMITTED FUEL- UNLEADED, SUPER-UNLEADED AND LRG
BS EN 228( Unleaded)
Test
MON( max) 89.0 EN ISO 5163 RON( max) 100.0 EN ISO 5164 Oxygen %( max) 3.7 % w / w Elemental LRG( Unleaded)
Test
MON( max) 89.0 EN ISO 5163 RON( max) 100.0 EN ISO 5164 Lead( max) g / l 0.005 ASTM D3341 / IP362 / EN 237 Oxygen %( max) 2.7 % w / w Elemental
Certain of the above values are additional to those specified in the standards referred to.
PERMITTED FUEL – DIESEL |
|
BS EN 590 |
Test |
Density 15˚C kg / m 3( max) |
845 |
EN ISO 3675 / EN ISO 12185 |
Cetane Number( max) |
60 |
EN ISO 5165 / EN 15195 |
Calculated Cetane Index( max) |
60 |
EN ISO 4264 |
Sulphur Content mg / kg( max) |
10 |
EN ISO 20846 / EN ISO 20884 |
At the discretion of the ASN the maximum Cetane and calculated Cetane numbers may be increased to 70.0 for National Competitions / Championships
Motorsport UK 2025 National Competition Rules Version 11
Chapter 8 Appendix 1- Permitted Fuels 320