{"product_id":"engine-oil-castrol-gtx-classic-20w-50-conventional-5-quart-15e809","title":"Engine Oil - Castrol GTX Classic - 20W-50 Conventional (5 Quart)","description":"New formula with high zinc (ZDDP) content.\nSpecially formulated for classic \/ collector cars with flat tappet cams or performance modified engines.\nAPI SJ\nNot for use in modern engines with catalytic converters.","brand":"Other","offers":[{"title":"CASTROL GTX CLASSIC","offer_id":40866102247482,"sku":"15E809--CAS","price":42.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/4846\/2650\/files\/Engine-Oil-Castrol-GTX-Classic-20W-50-Conven-73786.jpg?v=1780527860","url":"https:\/\/sierramadrecollection.com\/products\/engine-oil-castrol-gtx-classic-20w-50-conventional-5-quart-15e809","provider":"Sierra Madre Collection","version":"1.0","type":"link"}