Prestone DOT 4 Brake Fluid - Synthetic, 6×12 oz Pack, High Dry Boiling Point & Corrosion Inhibitors

Prestone AS800Y-6PK DOT 4 Brake Fluid is a synthetic, high-grade DOT 4 formula sold in six 12‑oz bottles designed to resist overheating, minimize brake fade, and deliver up to 50,000 miles of service life when used per manufacturer recommendations.

Whether you maintain your own vehicle or run a fleet, choosing the right brake fluid preserves braking performance under heat and moisture exposure. This DOT 4 fluid is engineered with a higher dry boiling point than the minimum DOT standard and contains additives to reduce water-related performance decline and to inhibit corrosion inside the brake system. It is compatible with ABS, disc and drum systems and can be mixed with other DOT 4 fluids when needed.

How does this DOT 4 fluid help when brakes get hot?

The formula starts with a higher dry boiling point than standard DOT 4, which helps maintain hydraulic pressure and pedal feel during heavy braking or repeated stops. That reduces the risk of vapor formation that leads to spongy brakes.

• Higher dry boiling point vs. DOT minimums to resist overheating
• Designed to slow formation of vapor that causes brake fade
• Synthetic base for stable performance under stress

Will this fluid protect my brake components from corrosion and moisture?

This extended‑life formula includes corrosion inhibitors and is formulated to cope with moisture absorption that naturally occurs in brake systems. Over time brake fluid picks up water; this product is engineered to postpone performance loss and metal corrosion compared with untreated fluids.

• Corrosion inhibitors for metal protection throughout the system
• Reduces performance decline caused by water uptake
• Extended service interval of up to 50,000 miles under recommended use

Is this compatible with my vehicle’s braking system and other fluids?

Prestone DOT 4 fluid is safe for any system specifying DOT 4, including ABS, disc and drum brakes. It is miscible with other DOT 4 fluids, but you should always follow your vehicle manufacturer’s specified DOT rating to preserve correct boiling point and replacement interval.

• Compatible with ABS, disc and drum brake systems
• Mixes with other DOT 4 brake fluids if necessary
• Follow vehicle DOT specifications to avoid altered performance

Who is this for: drivers, DIY mechanics, and fleet managers who need a reliable, long‑life DOT 4 brake fluid for routine service or preventive maintenance. The six 12‑oz bottles provide multiple fills or several vehicles’ top-offs, making this pack practical for home garages and small shops. If your vehicle specifies DOT 4 and you want a synthetic, corrosion‑inhibiting option with an extended service interval, this Prestone pack is formulated to meet those needs.