AI TipThe Definitive Honda City GM6 & Grace CVT Guide: HCF-2 Only & Drain Intervals

⚙️ Complete CVT Transmission Fluid Guide (Honda City GM6 & Grace)

The Continuously Variable Transmission (CVT) paired with Honda's L15 series engines is smooth, responsive, and fuel-efficient — but it is unforgiving of improper fluids and neglected service intervals.

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1. The Golden Fluid Rule: Honda HCF-2 Only

• Mandatory Fluid: Strictly Genuine Honda HCF-2 (Second Generation Continuously Variable Transmission Fluid).
• ⚠️ CRITICAL WARNING: NEVER USE Honda ATF-DW1, ATF-Z1, or universal "multi-vehicle" CVT fluids. Regular automatic transmission fluids lack the precise traction co-efficients required by Honda's steel push-belt and conical pulleys. Using ATF will cause catastrophic belt slippage and internal transmission destruction within thousands of kilometers.

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2. Capacities & Torques

• Drain & Fill Capacity: ~3.4 to 3.6 Liters on level ground.
• Drain Plug: 3/8-inch square drive drain bolt.
• Drain Plug Torque: 49 N·m (36 lb-ft) with a fresh 18mm aluminum crush washer (Part # 90471-PX4-000).
• Fill Port: Remove the black rubber breather plug with the "HCF-2" label located on top of the transmission housing near the airbox. Use a clean, long-neck funnel.

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3. Philippine Service Intervals

• Metro Manila Heavy Traffic (Severe Schedule): Every 20,000 km to 25,000 km (or 12 months). Extreme stop-and-go thermal cycling shears friction modifiers rapidly in tropical humidity.
• Highway / Normal Mixed Driving: Every 35,000 km to 40,000 km.
• Internal Cartridge Filter & Pan Magnet Service: At 80,000 km to 100,000 km, drop the steel pan to clean sludge off the magnets and replace the cylindrical paper filter (Part # 25450-P4V-003).

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4. Symptoms of Fluid Degradation

1. Initial shudder or RPM stumble when shifting from Park/Neutral into Drive (D) at a stoplight.