PG55 HQ | Free Shipping from 2 Bottles (Only $56.99 per Bottle)

PG55 HQ: Premium Coolant for Everyday Performance

Free U.S. Shipping from our California warehouse
Choose from 2-bottle, 4-bottle, or 6-bottle kits at our best unit price. Ideal for daily drivers, family cars, and performance street builds.

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.

Pricing (Free U.S. Shipping)

• 2 Bottles (8 L): $113.98 ($56.99 each) – For compact cars
• 4 Bottles (16 L): $227.96 ($56.99 each) – For larger engines
• 6 Bottles (24 L): $341.94 ($56.99 each) – For shops or fleet use

Notes

• Ships from California via USPS Ground
• Available in even-quantity bundles (2-pack, 4-pack, 6-pack)

Click here to download the SDS (Safety Data Sheet)