{"product_id":"halo-p1-race-brake-fluid-600ml-341-c-dry-boiling-point","title":"Halo P1 Race Brake Fluid 600ml | 341°C Dry Boiling Point","description":"\u003ch2\u003eHalo P1 Race Brake Fluid\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe highest dry boiling point of any racing brake fluid: 341°C \/ 646°F.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHalo P1 is a race-only, high-performance methyl triglycol (MTG) borate ester brake fluid with a proprietary formulation from Orthene, the manufacturer behind an estimated 65% of the world's racing brake fluid (per Orthene). It is built for the most demanding motor racing applications, where pedal consistency from the first lap to the last decides braking points.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDry Boiling Point\u003c\/th\u003e\n\u003ctd\u003e341°C \/ 646°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChemical Base\u003c\/th\u003e\n\u003ctd\u003eBorate ester (MTG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKinematic Viscosity @ -40°C\u003c\/th\u003e\n\u003ctd\u003e1313 cSt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKinematic Viscosity @ 100°C\u003c\/th\u003e\n\u003ctd\u003e2.5 cSt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBosch M4\/M5 ABS Compatible\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContainer Size\u003c\/th\u003e\n\u003ctd\u003e600 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended Use\u003c\/th\u003e\n\u003ctd\u003eRace only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat It Does For Your Braking\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow compressibility:\u003c\/strong\u003e a firm, consistent pedal across a wide temperature range. In Halo's pedal-travel test, P1 held constant travel until roughly 300°C, while the competitor fluids tested showed growing pedal travel well before vapor lock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow viscosity:\u003c\/strong\u003e quicker piston release and faster system response, including at low temperatures and in ABS modulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh lubricity:\u003c\/strong\u003e reduced wear on master cylinder, caliper and ABS seals, and consistent piston roll-back.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh boiling point:\u003c\/strong\u003e a wider operating window with less fluid degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure formulation:\u003c\/strong\u003e lower air entrainment, less bleeding and reduced fluid use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProven In Competition\u003c\/h3\u003e\n\u003cp\u003e2025 season: 15+ championships covered, 15+ vehicle categories, 100+ race wins and 14 championship wins. Technical partners include Prema, Meyer Shank Racing, Chip Ganassi Racing, Akkodis ASP, Maffi Racing and Steller.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHalo GT3 testing (Imola 6 Hours and GTWCE Catalunya, two identical cars, ~20°C dry):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLess pedal travel for the same brake pressure.\u003c\/li\u003e\n\u003cli\u003eMore deceleration for the same brake pressure.\u003c\/li\u003e\n\u003cli\u003eLower disc temperatures than the competitor car at Imola.\u003c\/li\u003e\n\u003cli\u003eHigher minimum corner speed, attributed by Halo to faster piston roll-back.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eTest results are manufacturer-reported.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSwitching To Halo P1\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMost racing fluids are borate ester based and miscible with P1. A thorough flush is generally sufficient.\u003c\/li\u003e\n\u003cli\u003eIf the car has silicate ester fluid (such as Castrol SRF), Halo recommends stripping and rebuilding calipers and master cylinders with new seals. Condition the new seals in P1 for 24 hours before assembly, then follow a standard bedding-in procedure.\u003c\/li\u003e\n\u003cli\u003eSilicate ester fluids are not recommended for Bosch M4\/M5 ABS modules due to poor lubricity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eP1 or GT?\u003c\/h3\u003e\n\u003cp\u003eP1 is the race-only formulation with the highest dry boiling point. If you want race-derived performance in a road-compliant DOT 4 fluid for track days and street, see Halo GT.\u003c\/p\u003e","brand":"Orthene","offers":[{"title":"Default Title","offer_id":49296258695476,"sku":"HALO.P1","price":81.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/8534\/7636\/files\/orthene_halo_P1_racing_brake_fluid_bottle_2_1280x_cdd841e2-f9c7-422d-a20a-9fc09ebc9fbd.jpg?v=1790015400","url":"https:\/\/alconkits.com\/products\/halo-p1-race-brake-fluid-600ml-341-c-dry-boiling-point","provider":"Alcon Brake Kits","version":"1.0","type":"link"}