{"product_id":"acdelco-dot-4-hydraulic-brake-clutch-fluid-16-oz-gm-oe-formula-high-boiling-point","title":"ACDelco DOT 4 Hydraulic Brake \u0026 Clutch Fluid 16 oz — GM OE Formula, High Boiling Point","description":"\u003cstrong\u003eACDelco DOT 4 Hydraulic Brake and Clutch Fluid (16 oz) is a premium FMVSS No. 116 DOT 4 formula engineered to resist boiling, protect internal components from corrosion, and deliver stable performance across a wide temperature range.\u003c\/strong\u003e\n\n\u003cp\u003eThis ACDelco GMW DOT 4 hydraulic fluid is formulated for vehicles that require FMVSS No. 116 DOT 4, ISO 4925 Class 6 performance and meets GMW 3356 specifications. Packaged in a convenient 16-ounce bottle, it serves both brake and hydraulic clutch systems where a DOT 4 fluid is specified. The blend emphasizes a high wet and dry boiling point to reduce the risk of vapor lock under heavy braking, and its chemistry offers improved low-temperature flow characteristics for reliable pedal feel in cold starts.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this fluid reduce the risk of brake fade under heavy use?\u003c\/h3\u003e\n\u003cp\u003eThe ACDelco DOT 4 formulation raises both dry and wet boiling points compared with DOT 3 fluids, helping maintain hydraulic pressure and pedal firmness during prolonged or demanding braking. Higher boiling resistance means less chance of vapor formation inside the brake lines, which preserves responsiveness when temperatures climb.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh dry and wet boiling points to resist vapor lock\u003c\/li\u003e\n  \u003cli\u003eStable viscosity under heat to maintain consistent pedal feel\u003c\/li\u003e\n  \u003cli\u003eSuitable for vehicles and driving conditions that stress brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it protect internal parts from corrosion and wear?\u003c\/h3\u003e\n\u003cp\u003eYes — this DOT 4 fluid contains additives designed to guard metal surfaces and sealing components from corrosion during normal service intervals. Regular use of the correct brake fluid helps extend the life of calipers, cylinders, and lines by minimizing rust and degradation of rubber seals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrosion inhibitors formulated for hydraulic systems\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard brake system metals and elastomers\u003c\/li\u003e\n  \u003cli\u003eMeets GMW 3356 for material compatibility and protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this fluid suitable for cold-weather starting and low-temperature performance?\u003c\/h3\u003e\n\u003cp\u003eACDelco engineered this DOT 4 fluid to maintain acceptable cold viscosity, which helps ensure predictable braking and clutch engagement in lower temperatures. Lower cold viscosity improves flow at start-up, reducing drag and preserving consistent pedal feel until systems warm up.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFormulated for good low-temperature flow characteristics\u003c\/li\u003e\n  \u003cli\u003eMaintains stability across temperature extremes\u003c\/li\u003e\n  \u003cli\u003eAppropriate for drivers in climates with cold starts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know this is the correct fluid for my vehicle?\u003c\/h3\u003e\n\u003cp\u003eCheck your owner’s manual or the vehicle’s service documentation for the specified FMVSS or ISO brake fluid class—this product fulfills FMVSS No. 116 DOT 4 and ISO 4925 Class 6 requirements. Use DOT 4 fluids where DOT 4 is required; mixing different DOT ratings can change boiling points and performance, so follow manufacturer recommendations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeets FMVSS No. 116 DOT 4 and ISO 4925 Class 6\u003c\/li\u003e\n  \u003cli\u003eMeets GMW 3356, recommended for General Motors applications\u003c\/li\u003e\n  \u003cli\u003e16 oz bottle for topping off or single-service jobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNote about safety: this product contains chemicals listed under California Proposition 65. Handle with care, avoid prolonged skin contact, and consult local regulations for disposal instructions.\u003c\/p\u003e\n\n\u003cp\u003eWho is this for? Mechanics, DIY enthusiasts, and fleet maintenance teams who need a reliable DOT 4 brake and clutch fluid that meets OEM specifications will benefit from ACDelco 798696. It’s suited to drivers seeking a ready-to-use 16-ounce supply for topping off reservoirs, performing brake service, or maintaining hydraulic clutch systems where DOT 4 is specified. Choose this fluid when you want a factory-compatible product that balances high-temperature boil resistance, cold-weather performance, and corrosion protection.\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 mix ACDelco DOT 4 with DOT 3 fluid?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Mixing is possible but not recommended; combining DOT 3 lowers overall boiling resistance. Use DOT 4 where the manufacturer specifies DOT 4 for full performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should DOT 4 brake fluid be replaced?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Service intervals vary by vehicle; many manufacturers recommend flushing every 2 years or per your owner's manual and moisture testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ACDelco","offers":[{"title":"Default Title","offer_id":67591429914809,"sku":"B010G6DOA0","price":62.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/acdelco-dot4-16oz-front-label.jpg?v=1790550871","url":"https:\/\/redleafauto.ca\/products\/acdelco-dot-4-hydraulic-brake-clutch-fluid-16-oz-gm-oe-formula-high-boiling-point","provider":"Redleaf Auto","version":"1.0","type":"link"}