PG55 HQ: Premium Coolant for Everyday Performance Free U.S. Shipping from our California warehouseChoose 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)
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