PG55 HQ | Kemitec Coolant 4L (50:50) | Ships from California

PG55 HQ: Premium Coolant for Everyday Performance

US Launch Campaign – Limited-Time Pricing
To welcome new customers in the US, we are offering special launch pricing through January 8, 2027. Prices are shown against the Japan retail price (Kemitec MSRP + import shipping to the US).

Ships from our California warehouse (US)
Choose from 2-bottle, 4-bottle, or 6-bottle kits. Ideal for daily drivers, family cars, and performance street builds. Shipping is calculated at checkout (FedEx Ground flat rate or USPS Ground Advantage).

Antifreeze Type: Precision Prediluted (50:50)

Engineered for Daily Performance and Long-Term Protection

PG55 HQ combines motorsport-level engineering with everyday reliability. Its balanced 50:48.7:1.3 formulation ensures consistent cooling, strong corrosion resistance, and cost efficiency for gasoline engines. Whether you’re commuting in city traffic or driving long distances, PG55 HQ keeps your engine protected year-round.

Why Choose PG55 HQ?

• Everyday Driver Focus – Perfect for commuters, family cars, and general-use vehicles
• Fast Warm-Up Efficiency – Reduces engine wear and emissions during cold starts
• Seasonal Versatility – Protects down to −22°F (−30°C) and performs in summer heat
• Eco-Friendly – Made with non-toxic, biodegradable propylene glycol
• Cost-Effective Durability – Protects for up to 5 years or 100,000 km
• Low-Viscosity Formula – Reduces water-pump load and maintains flow stability

Technical Specifications

• Engine Compatibility: Suitable for all gasoline engines
• Composition:
  • Propylene glycol: 50%
  • High-precision filtered water: 48.7%
  • Additives (rust inhibitors, anti-foaming agents): 1.3%
• Boiling Point: 224.6°F (107°C)
• Antifreeze Protection: Down to −22°F (−30°C)
• Replacement Interval: Up to 5 years
• Volume: 4 liters (1.056 gallons)
• Color: Emerald Green
• Type: Ready-to-use (Do not dilute or mix with other coolants)

Why the 50:50 Ratio Matters

PG55 HQ uses a 50:50 balance of propylene glycol and pure water for optimal thermal efficiency, cost performance, and long-term protection. It’s ideal for users who want reliability and Japanese quality at an accessible price.

How Much Do You Need?

• Compact Cars and Sedans (e.g., Honda Civic, Toyota Corolla): 5–8 liters → 2 bottles
• Mid-Size SUVs and Trucks (e.g., Ford Escape, Toyota Tacoma): 9–13 liters → 4 bottles

Usage Note — For Maximum Performance

For the best results, flush your cooling system before filling with PG55 HQ:

• Rinse twice with clean distilled or de-ionized water to remove old residues.
• Ensure all ethylene-glycol-based coolant is completely removed.

If your vehicle already uses PG55 HQ, no flushing is needed for continuous use.

Notes

• Ships from California (US mainland only)
• Shipping options and rates shown at checkout: FedEx Ground flat rate or USPS Ground Advantage
• Available in 2-, 4- and 6-bottle kits
• Campaign pricing ends January 8, 2027

Click here to download the SDS (Safety Data Sheet)