ʻOku matuʻaki tuʻu laveangofua ʻa e hala valitaa ki he penisini mo e diesel, ʻa ia ʻoku comprises ʻe he kemikale ʻa e alkanes mo e cycloalkanes. ʻI hono fakafehoanaki, ʻOku faʻu ʻaki ʻa e valitaa ʻa e hydrocarbons, aromatic meʻa koʻeni, valitaa, mo e resins.
ʻOku fakahaaʻi ʻe he fakatotolo ha faitatau ʻi he faʻunga ʻo e kemikale ʻi he vahaʻa ʻo e valitaa mo e fuels ko ʻeni, fakamoʻoniʻi ʻe honau ngaahi fakangatangata ʻo e ʻauha. This similarity underpins the “like dissolves like” principle, suggesting that gasoline and diesel can significantly penetrate and dissolve valitaá.