Prohibited Compounds List

According to the Supplementary Regulations, the Region prohibits the use of any compound banned by the GCR and any compound in a list published by the Region on its website thirty days after the publication of that list.

Below is the first lis of compounds prohibited by the Region. Except for the items indicated as banned by the GCR (which are banned as of January 1, 2009), the following chemicals are banned from us in any Region Race, thirty days after the first publication of this list on the Region's Website.

CHEMICAL COMPOUNDS PROHIBITED
OR RESTRICTED IN SFR SCCA RACE FUELS

The region reserves the right to add additional compounds or classes of compounds to this list by publishing notice of such addition in the wheel and/or on the region’s website. Any such additional compound or classes of compounds shall be banned thirty days after such notice is first published.

Compounds                Examples               Maximum Weight or Percentage By Weight Allowed
Total Aldehydes   Acetaldehyde, Acrolein, Formaldehyde                 1.0%
Benzene                                                                                       2.0%
Total Cyclic ethers     1,4 Dioxane, Furan, Tetrahydrofuran             0.05%
Total Dienes(Diolefins)    1,3 Butadiene, Isoprene                           1.0%
Ethanol                                                                                       10.0%
Total Epoxides            Ethylene oxide**, Propylene oxide**               0.05%
Methanol                                                                                       1.0%
Total Metals (elemental, non-lead) Manganese (e.g.,MMT), Boron, Chromium    0/05g/gal
Total Lead (elemental)      Lead (e.g.,TML, TEL)                            8.0 gm/gal
Total Nitrogen Compounds**   Nitromethane, Nitroethane. Nitropropane, and all aromatic nitrogen compounds such as Nitrobenzene, Ammonia, Amines and their salts, Aniline, Hydrazine, Pyridine, Pyrrole, Benzidine                                             0.05%
Styrene                                                                                           1.0%
Total Sulfur Compounds**     Dimethylsulfoxide, Thiophene                0.05%
** Already Prohibited by 2009 GCR