{"product_id":"os-giken-os-250r-v2-80w-250-lsd-gear-oil","title":"OS Giken OS-250R V2 80W-250 LSD Gear Oil","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eOS Giken OS-250R V2 80W-250 LSD Gear Oil\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFor OS Giken Mechanical Limited Slip Differentials in Rear-Wheel-Drive Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eOS Giken OS-250R V2 Gear Oil\u003c\/strong\u003e is a high-performance synthetic differential lubricant developed specifically for OS Giken mechanical limited slip differentials. Its friction characteristics support the smooth, progressive locking behavior of the Super Lock LSD while protecting gears and clutch plates during street, track, drift, and competition use.\u003c\/p\u003e\n\u003cp\u003eRated at \u003cstrong\u003eSAE 80W-250\u003c\/strong\u003e, the V2 formulation combines a PAO and Polyol Ester synthetic base with an extreme-pressure additive package designed for high-load differential operation. The integrated friction modifiers help maintain consistent clutch-pack operation without requiring a separate LSD additive.\u003c\/p\u003e\n\u003cp\u003eChoose between a \u003cstrong\u003esingle 1-liter can\u003c\/strong\u003e or a \u003cstrong\u003e2-liter package for a complete Toyota AE86 T-Series differential service\u003c\/strong\u003e. The AE86 rear differential requires approximately \u003cstrong\u003e1.3 liters\u003c\/strong\u003e, making the 2-liter option the correct quantity for a complete drain and refill.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically formulated for \u003cstrong\u003eOS Giken mechanical limited slip differentials\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE 80W-250\u003c\/strong\u003e viscosity\u003c\/li\u003e\n\u003cli\u003ePAO and Polyol Ester synthetic base\u003c\/li\u003e\n\u003cli\u003eExtreme-pressure additive package\u003c\/li\u003e\n\u003cli\u003eDesigned for smooth, progressive LSD engagement\u003c\/li\u003e\n\u003cli\u003eHelps reduce clutch-pack chatter and vibration\u003c\/li\u003e\n\u003cli\u003eSupports consistent lubrication under high temperatures and loads\u003c\/li\u003e\n\u003cli\u003eIntegrated LSD friction modifiers\u003c\/li\u003e\n\u003cli\u003eCompatible with remaining original OS-250R fluid\u003c\/li\u003e\n\u003cli\u003eDistinctive blue V2 formulation\u003c\/li\u003e\n\u003cli\u003eAvailable in \u003cstrong\u003e1-liter or 2-liter quantities\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2-liter option provides enough fluid for a complete AE86 rear differential service\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eDesigned for OS Giken Super Lock LSDs\u003c\/h2\u003e\n\u003cp\u003eOS Giken mechanical LSDs rely on carefully controlled friction characteristics to determine how smoothly and consistently the differential locks. Using unsuitable gear oil or adding an unnecessary aftermarket friction modifier can change clutch behavior and potentially create chatter or inconsistent engagement.\u003c\/p\u003e\n\u003cp\u003eOS-250R V2 is formulated specifically around the operating characteristics of \u003ca href=\"https:\/\/preserverad.com\/products\/os-giken-super-lock-lsd-toyota-ae86-4age?_pos=1\u0026amp;_fid=a42efc188\u0026amp;_ss=c\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eOS Giken mechanical LSDs\u003c\/strong\u003e\u003c\/a\u003e. Its friction-modifying and extreme-pressure additives help the clutch pack engage progressively while maintaining lubrication during repeated high-load and high-temperature driving.\u003c\/p\u003e\n\u003cp\u003eThe V2 formulation supersedes the original OS-250R gear oil and can be mixed with residual original OS-250R fluid remaining inside the differential.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Rear-Wheel-Drive Application\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOS Giken Super Lock mechanical limited slip differentials – \u003cstrong\u003eRWD differential applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eToyota Corolla AE86 – \u003cstrong\u003eAE86 – RWD – T-Series Rear Differential with OS Giken Super Lock LSD\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOther rear-wheel-drive OS Giken mechanical LSD applications where OS-250R gear oil is specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDesigned for OS Giken mechanical limited slip differentials\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNot recommended for transaxle applications\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDo not add a separate aftermarket LSD friction modifier unless specifically required for another application\u003c\/li\u003e\n\u003cli\u003eCompatible with residual original OS-250R fluid\u003c\/li\u003e\n\u003cli\u003eEach individual can contains \u003cstrong\u003e1 liter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eToyota AE86 T-Series rear differential capacity is approximately \u003cstrong\u003e1.3 liters\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSelect the 2-liter option for a complete AE86 differential drain and refill\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eApproximately 0.7 liter will remain after filling an AE86 differential to its approximate 1.3-liter capacity\u003c\/li\u003e\n\u003cli\u003eAlways set the final oil level according to the vehicle's proper differential fill procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e OS Giken\u003cbr\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e OS-250R V2\u003cbr\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Limited Slip Differential Gear Oil\u003cbr\u003e\u003cstrong\u003eViscosity:\u003c\/strong\u003e SAE 80W-250\u003cbr\u003e\u003cstrong\u003eBase Oil:\u003c\/strong\u003e PAO \u0026amp; Polyol Ester Synthetic\u003cbr\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Mechanical Limited Slip Differentials\u003cbr\u003e\u003cstrong\u003ePrimary Use:\u003c\/strong\u003e Rear-Wheel-Drive Differentials\u003cbr\u003e\u003cstrong\u003eFluid Color:\u003c\/strong\u003e Blue\u003cbr\u003e\u003cstrong\u003eContainer Size:\u003c\/strong\u003e 1 Liter Per Can\u003cbr\u003e\u003cstrong\u003eAvailable Quantity:\u003c\/strong\u003e 1 Liter or 2 Liters\u003cbr\u003e\u003cstrong\u003eFriction Modifier:\u003c\/strong\u003e Integrated LSD Additive Package\u003cbr\u003e\u003cstrong\u003eTransaxle Use:\u003c\/strong\u003e Not Recommended\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOriginal OS-250R vs. OS-250R V2\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOS-250R V2 replaces the original OS-250R formula\u003c\/strong\u003e while retaining the friction characteristics required for OS Giken mechanical LSD operation. The updated formulation improves fluid flow and penetration through the clutch pack while maintaining high-load protection and smooth, progressive differential locking.\u003c\/p\u003e\n\u003cp\u003eThe V2 formula is compatible with remaining original OS-250R fluid, so small amounts of the previous formulation do not need to be completely purged before switching to V2.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1 Liter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(1) 1-Liter Can of OS Giken OS-250R V2 80W-250 LSD Gear Oil\u003c\/li\u003e\n\u003cli\u003eSuitable for topping off, partial service, or applications requiring 1 liter or less\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2 Liters | Full AE86 Differential Fill\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(2) 1-Liter Cans of OS Giken OS-250R V2 80W-250 LSD Gear Oil\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRecommended quantity for a complete Toyota AE86 T-Series rear differential service\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eProvides enough fluid for the approximately \u003cstrong\u003e1.3-liter AE86 differential capacity\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eLeaves approximately \u003cstrong\u003e0.7 liter\u003c\/strong\u003e remaining for future service or top-offs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Preserve Rad","offers":[{"title":"1 Can | 1 Liter","offer_id":53466635075893,"sku":"810","price":50.0,"currency_code":"USD","in_stock":true},{"title":"2 Cans | 2 Liters – Full AE86 Differential Fill","offer_id":53466635108661,"sku":"811","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/1logos_1_198b60c7-0c5f-4a0a-ab1d-9fa5f88de49b.png?v=1788660832","url":"https:\/\/preserverad.com\/products\/os-giken-os-250r-v2-80w-250-lsd-gear-oil","provider":"Preserve Rad","version":"1.0","type":"link"}