{"product_id":"vp-racing-classic®-hi-performance-api-gl4-sae-80w90-gear-oil","title":"VP Racing Classic® Hi Performance API GL4 SAE 80W90 Gear Oil","description":"\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eVP Classic GL4 SAE 80W90 Gear Oil is formulated specifically for classic manual transmissions that contain yellow metals. Brass synchronizers, bronze thrust washers, copper bushings, and similar soft metal components are common in vintage American and import manual gearboxes, and they require a GL4 specification oil to stay protected.\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eWhy GL4 matters for classic transmissions:\u003c\/strong\u003e GL5 gear oils contain higher concentrations of extreme pressure additives, specifically sulfur-phosphorus compounds, that can chemically attack yellow metals over time. Using GL5 in a transmission designed for GL4 can cause synchronizer degradation, rough shifting, and accelerated wear. VP Classic GL4 delivers the correct protection level for these applications without the chemistry that damages soft metals.\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eCompatible Transmissions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eVP Classic GL4 80W90 is recommended for:\u003c\/p\u003e\n\u003cul class=\"an-md-ul my-2.5 max-w-[48rem] list-outside list-disc space-y-1.5 pl-5 text-[15px] leading-[1.62] text-stone-800 marker:text-hi-vis-orange-500\"\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eMuncie 4-speed (GM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eBorg-Warner T10 and Super T10\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eFord Toploader\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eSaginaw 3- and 4-speed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eRockwell manual transmissions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eImport manual transmissions and transaxles calling for GL4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"an-md-ul my-2.5 max-w-[48rem] list-outside list-disc space-y-1.5 pl-5 text-[15px] leading-[1.62] text-stone-800 marker:text-hi-vis-orange-500\"\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eGL4 specification, safe for brass, bronze, and copper components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eSpecial anti-wear additives prevent scuffing and welding on gear contact surfaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eDelivers outstanding wet clutch performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eLong-lasting inhibitors protect against corrosion, rust formation, and foaming\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eMaintains gear cleanliness for consistent shift quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"an-md-li pl-1 text-[15px] leading-[1.62] text-stone-800\"\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003eImproves shifting feel and reduces transmission noise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eWhat is the difference between GL4 and GL5 gear oil?\u003c\/strong\u003e GL5 contains higher concentrations of sulfur-phosphorus extreme pressure additives that can chemically attack yellow metals like brass, bronze, and copper. Most classic American and import manual transmissions use these metals in synchronizers, thrust washers, and bushings. GL4 provides the right protection level for those components without the damaging chemistry. Always match the oil specification to what your transmission manufacturer requires.\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eCan I use VP Classic GL4 in a differential?\u003c\/strong\u003e No. This product is formulated for manual transmissions and transaxles requiring GL4. Do not use it in applications requiring GL5 extreme pressure gear oil, limited slip differentials, or any application calling for an OEM specialized lubricant.\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eWhat transmissions is VP Classic GL4 compatible with?\u003c\/strong\u003e It is recommended for Muncie, Borg-Warner, Ford Toploader, Saginaw, and Rockwell manual transmissions, as well as import manual transmissions and transaxles specifying GL4 gear oil.\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eIs VP Classic GL4 safe for synchronizers?\u003c\/strong\u003e Yes. The GL4 specification is specifically chosen to protect synchronizers made from yellow metals, which are common in classic manual transmissions. GL5 oils can damage these components over time.\u003c\/p\u003e\n\u003cp class=\"an-md-p my-2.5 max-w-[48rem] text-[15px] leading-[1.62] text-stone-800 first:mt-0 last:mb-0\"\u003e\u003cstrong class=\"font-semibold text-stone-950\"\u003eWhat size does VP Classic GL4 come in?\u003c\/strong\u003e Currently available in 1 quart.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"VP Racing Fuels, Inc.","offers":[{"title":"1 Quart","offer_id":67896926208299,"sku":"2703","price":12.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/8980\/9195\/files\/2709ClassicGearOilGL4SAE80W90.png?v=1793043872","url":"https:\/\/allthingzutv.com\/products\/vp-racing-classic%c2%ae-hi-performance-api-gl4-sae-80w90-gear-oil","provider":"All Thingz UTV","version":"1.0","type":"link"}