{"product_id":"mobil-mobil-3309-automatic-transmission-fluid-jws-3309-6-x-1-quart-synthetic-atf-for-smooth-shifting-seal-compatibility","title":"Mobil Mobil 3309 Automatic Transmission Fluid JWS 3309 - 6 x 1 Quart, Synthetic ATF for Smooth Shifting \u0026 Seal Compatibility","description":"\u003cp\u003e\u003cstrong\u003eMobil 3309 Automatic Transmission Fluid is a high-performance ATF formulated to meet JWS 3309 and equivalent OEM specifications for smooth shifting, seal compatibility, and long-term viscosity stability.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMobil 3309 ATF is designed for use in certain slip-controlled, lock-up automatic transmissions where manufacturers call for JWS 3309, GM 9986195, Toyota T-IV\/T-III equivalence, or similar specifications. Packaged here as six 1‑quart bottles, this fluid aims to maintain stable viscosity across temperature extremes, resist chemical breakdown, and protect moving parts against wear and corrosion. It also works with modern synthetic rubber seals and resists foaming, helping transmissions stay quiet and responsive under a range of driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhich transmissions is Mobil 3309 compatible with?\u003c\/h3\u003e\n\u003cp\u003eMobil 3309 is recommended where OEMs specify JWS 3309 or equivalent service levels and it is compatible with several manufacturer fluid standards. Always check your vehicle’s owner manual or transmission data plate to confirm the recommended fluid specification before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRecommended for JWS 3309 and GM 9986195 service levels.\u003c\/li\u003e\n\u003cli\u003eCompatible with Toyota T-IV (T4) and T-III (T3) type specifications.\u003c\/li\u003e\n\u003cli\u003eMeets or is compatible with certain Ford and VW transmission requirements where specified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this ATF support transmission performance?\u003c\/h3\u003e\n\u003cp\u003eMobil 3309 helps preserve transmission operation through a combination of thermal and chemical stability, controlled frictional properties, and corrosion protection. This supports quiet gearing, consistent shift feel, and longer component life under varied temperatures and loads.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh viscosity index reduces thinning at high temperatures and excessive thickening when cold.\u003c\/li\u003e\n\u003cli\u003eFormulated to resist oxidation and chemical breakdown for longer fluid life.\u003c\/li\u003e\n\u003cli\u003eFriction characteristics tuned for smooth, predictable gear engagement.\u003c\/li\u003e\n\u003cli\u003eAnti-corrosion additives help prevent rust on internal parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill Mobil 3309 work with seals and modern materials in my transmission?\u003c\/h3\u003e\n\u003cp\u003eYes — the formula is compatible with many synthetic rubber seal compounds used in modern automatic transmissions. That compatibility helps prevent leaks and maintains proper hydraulic control within the gearbox.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSafe for common elastomers used in OEM transmissions.\u003c\/li\u003e\n\u003cli\u003eDesigned to minimize swelling, shrinkage, or hardening of seals over time.\u003c\/li\u003e\n\u003cli\u003eFoam-resistant formulation maintains consistent hydraulic response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical benefits of buying the 6-quart case?\u003c\/h3\u003e\n\u003cp\u003ePurchasing a case of six 1‑quart bottles gives you spare fluid for routine service intervals, easier top-ups, and cost savings versus single-bottle purchases. It’s convenient for DIY maintenance, shop use, or keeping a ready supply for multiple vehicles.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSix individual 1‑quart bottles for controlled pouring and storage.\u003c\/li\u003e\n\u003cli\u003eGood for multiple services or stocking for future top-ups.\u003c\/li\u003e\n\u003cli\u003eReduces the need to open and store part-used larger containers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Mobil 3309 ATF in a case of six 1‑quart bottles is aimed at vehicle owners and professional technicians who need a trusted fluid that matches JWS 3309 and similar OEM requirements. It’s suited to drivers seeking a stable, seal‑friendly ATF for transmissions that call for these specifications, plus small garages and fleets that benefit from buying a multi-bottle pack for service convenience.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use Mobil 3309 in transmissions calling for Toyota T-IV?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Mobil 3309 is compatible with Toyota T‑IV\/T‑III type specifications, but always confirm your vehicle’s manual first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is Mobil 3309 suitable for cold-weather starting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Mobil 3309 has a high viscosity index to limit thickening at low temperatures and support start-up lubrication.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mobil","offers":[{"title":"Default Title","offer_id":48079846998174,"sku":"B07T7L31DZ","price":78.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mobil-3309-front-label.jpg?v=1785772726","url":"https:\/\/northtrailauto.ca\/products\/mobil-mobil-3309-automatic-transmission-fluid-jws-3309-6-x-1-quart-synthetic-atf-for-smooth-shifting-seal-compatibility","provider":"North Trail Auto","version":"1.0","type":"link"}