{"product_id":"tsi-supercool-e31-ester-compressor-oil-32-oz-dye-free-pag-mineral-compatible","title":"TSI Supercool E31 Ester Compressor Oil 32 oz — Dye-Free, PAG\/Mineral Compatible","description":"\u003cp\u003e\u003cstrong\u003eTSI Supercool E31 Ester Oil 32oz is a dye-free synthetic ester compressor lubricant designed to protect refrigeration and automotive A\/C compressors while remaining compatible with PAG and mineral oils.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEngineered for service technicians and advanced DIYers, this 32 oz bottle of E31 provides high lubricity and protective additives for compressors running on commonly used refrigerants. It includes corrosion inhibitors, O-ring conditioner, anti-wear, and antioxidant components to support moving parts and help minimize acid formation. The formula is free of dye, which is useful when you need to preserve system cleanliness or avoid interference with leak-detection dye protocols.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this oil protect my compressor?\u003c\/h3\u003e\n\u003cp\u003eE31’s synthetic ester base delivers strong film strength and lubricity to reduce metal-to-metal wear under high loads and temperatures. Anti-wear and antioxidant additives extend component life by limiting friction and slowing oxidative breakdown.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh lubricity synthetic ester reduces bearing and vane wear\u003c\/li\u003e\n  \u003cli\u003eAnti-wear package for longer service intervals\u003c\/li\u003e\n  \u003cli\u003eAntioxidants slow fluid degradation in operating conditions\u003c\/li\u003e\n  \u003cli\u003eCorrosion inhibitors help protect internal surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich refrigerants and oils is E31 compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis lubricant is formulated to work with R-134a and legacy R-12 refrigerants, and it blends compatibly with both PAG and mineral oils for flexible use during repairs and retrofits. It is not formulated for HVAC systems or R-1234yf applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with R-134a and R-12 systems\u003c\/li\u003e\n  \u003cli\u003eMixes with PAG and mineral oils when service requires top-off\u003c\/li\u003e\n  \u003cli\u003eNot for HVAC residential\/commercial equipment or R-1234yf\u003c\/li\u003e\n  \u003cli\u003eDye-free for clean diagnostics and service work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use it during an A\/C system service or retrofit?\u003c\/h3\u003e\n\u003cp\u003eE31 is suitable for many automotive A\/C service jobs and component replacements where ester oil is specified or acceptable. Because it contains an O-ring conditioner, it helps preserve seal elasticity during service and reduces the risk of leaks after reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUseful when replacing compressors or performing oil top-offs\u003c\/li\u003e\n  \u003cli\u003eO-ring conditioner aids seal compatibility and longevity\u003c\/li\u003e\n  \u003cli\u003eDye-free formula avoids masking pressure-tested leaks\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer recommendations for oil type and quantity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat precautions should I take before using E31?\u003c\/h3\u003e\n\u003cp\u003eAlways confirm the compressor manufacturer’s lubricant requirements and do not use E31 in systems specified for other oil types like POE for certain refrigerants or R-1234yf service. Avoid HVAC systems and ensure proper oil evacuation and recycling to prevent cross-contamination.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify compressor and refrigerant compatibility before use\u003c\/li\u003e\n  \u003cli\u003eDo not use in HVAC or R-1234yf systems\u003c\/li\u003e\n  \u003cli\u003eDrain and recover old oil to prevent contamination when topping off\u003c\/li\u003e\n  \u003cli\u003eDispose of used oil per local environmental regulations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? TSI Supercool E31 Ester Oil 32oz is aimed at automotive technicians, mobile A\/C specialists, and knowledgeable DIYers who need a dye-free ester lubricant for R-134a or R-12 service. Choose this product when you require a high-lubricity synthetic ester that conditions seals, protects compressors from wear and corrosion, and can be blended with PAG or mineral oils during repairs. If you’re servicing building HVAC equipment or working with R-1234yf systems, select a product formulated for those applications instead.\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: Is this oil safe for R-134a systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. E31 is compatible with R-134a and can be mixed with PAG or mineral oils per service needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use it in HVAC systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This product is not intended for residential or commercial HVAC or R-1234yf systems.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TSI Supercool","offers":[{"title":"Default Title","offer_id":48084408369310,"sku":"B00CKITA92","price":29.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/tsi-supercool-e31-front-label.jpg?v=1785854287","url":"https:\/\/northtrailauto.ca\/products\/tsi-supercool-e31-ester-compressor-oil-32-oz-dye-free-pag-mineral-compatible","provider":"North Trail Auto","version":"1.0","type":"link"}