{"product_id":"80w-90-gl-4-mineral-gear-oil","title":"80W-90 GL-4 Mineral Gear Oil","description":"It is engineered specifically for use with \"yellow\" metallurgy, such as brass, bronze, and copper, which are common in vintage synchronizers, thrust washers, and bushings. This 12-quart package provides a consistent supply for complete fluid service in older gearboxes.\n\nThis GL-4 rated lubricant does not contain friction modifiers, as these additives can interfere with proper synchronizer performance. Consequently, it is not intended for use in limited-slip differential applications. Furthermore, this gear oil is not for use in applications requiring API GL-5 quality extreme pressure (EP) lubricants or where OEM specialized fluids are mandated by the manufacturer.\n\nThis fluid is suitable for a range of heavy-duty and classic manual transmission applications, including those found in various Nissan UD, Mitsubishi Fuso, Volvo, and Mercedes-Benz trucks, where specific compatibility with soft metal components is required.","brand":"PennGrade","offers":[{"title":"Default Title","offer_id":52663236821304,"sku":"77296-12","price":140.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687523146.jpg?v=1784325221","url":"https:\/\/store.motormia.co\/products\/80w-90-gl-4-mineral-gear-oil","provider":"MOTORMIA","version":"1.0","type":"link"}