PEAK Si‑OAT Antifreeze Concentrate Violet 1 Gal — Extended‑Life Protection for European Vehicles

PEAK OET Extended Life Violet Concentrate is a silicate‑enhanced organic acid (Si‑OAT) antifreeze designed for many European vehicles, offering concentrated protection against corrosion and cavitation when mixed to the proper ratio.

This 1‑gallon bottle of PEAK OET Violet Concentrate is formulated for European cooling systems that specify a violet Si‑OAT coolant. It’s a concentrated mix intended for dilution with water, making it suitable for flushing, filling, or topping off a system. The formula includes protection against rust and other forms of coolant degradation, and contains a bittering agent (Denatonium Benzoate) to discourage accidental ingestion.

What vehicles is this coolant made for?

This antifreeze concentrate is tailored to fit European cars that require a silicate‑enhanced organic acid technology (Si‑OAT) coolant. Common compatible makes include select Audi, Mercedes‑Benz, Porsche, and Volkswagen models, but always verify your owner’s manual or dealer guidance before use. The violet color helps distinguish it from other coolant families during service.

• Suitable for many European models that specify violet Si‑OAT coolant
• Works with cooling systems using silicate‑enhanced OAT chemistry
• Concentrated formula for custom dilution ratios
• Color coding aids correct coolant identification

How does this concentrate protect my engine and cooling components?

PEAK OET’s formulation helps limit corrosion and scale formation on metal and alloy components of the cooling system. When installed following a full flush and fill, the product is backed by a coverage recommendation for extended service intervals. Regular maintenance and correct dilution are still important to maintain protection.

• Inhibitors reduce rust and corrosion on radiators, pumps, and liners
• Silicate additives help guard against cavitation in aluminum parts
• Designed to maintain stability over extended service intervals
• Concentrate form allows precise coolant strength control

How do I use the concentrate — mixing and service life expectations?

The concentrate must be mixed with deionized or distilled water to achieve the manufacturer‑specified freeze/boil protection and inhibitor levels. When used as part of a complete flush and fill, PEAK guarantees service protection up to 150,000 miles or 5 years, provided the vehicle maker’s recommendations are followed. For topping off, match the existing coolant chemistry and color whenever possible.

• Mix per vehicle manufacturer dilution instructions (commonly 50/50 or specified ratio)
• Use distilled or deionized water to avoid mineral deposits
• Replace coolant during a full flush for warranty coverage
• Keep sealed and store upright to preserve additives

Are there safety or handling considerations I should know?

The product contains Denatonium Benzoate, a bittering agent added to discourage ingestion, and should be stored away from children and pets. Avoid contact with skin and eyes and clean spills promptly to prevent staining or surface damage. Dispose of old coolant according to local hazardous waste regulations—do not pour it down drains or onto the ground.

• Contains bittering agent to reduce accidental ingestion risk
• Use gloves and eye protection when handling concentrate
• Follow local rules for recycling or disposing of used coolant
• Store in original container, away from heat and direct sunlight

Who is this for? PEAK OET Extended Life Violet Concentrate is aimed at owners and technicians of European vehicles that require a silicate‑enhanced OAT coolant and who want a concentrated product for controlled mixing, flushing, or topping off. It’s a practical choice for fleet maintenance, independent shops, and car owners who follow manufacturer coolant specifications and seek extended service intervals when performing a proper flush and refill.