Both plastic and metal components of carburetors in small engines come in contact with gasoline and react with it in multiple ways that are poorly understood. Retention times of representative chemical components of gasoline were individually determined by GC with flame ionization detection. Sample materials from a carburetor were submerged in a representative gasoline mixture that was tested for compositional changes at various time intervals for up to six months. Changes in GC peak areas of gasoline components determined which carburetor materials reacted with gasoline.

GC analysis of carburetor component reactions with gasoline

255th National Meeting (2018)

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