Abstract: An air filter including an annular base mounting a porous filtration member medially thereon, with a forward mesh grid and a rear perforated cylindrical plate, wherein the filtration member includes a semi-annular groove mounted medially throughout a top portion thereof, wherein the groove receives a continuous tubular reservoir. The reservoir includes through-extending apertures including an overlying removable tape thereon, whereupon removal of the tape, the reservoir includes a quantity of solvent directed interiorly of the carburetor during operation of the vehicle to effect a cleansing of the carburetor in use.