2025-01-15 · 5 min read
Mazda CX-90 Coolant Malaysia — PHEV Dual Loop
CX-90 PHEV has two separate cooling circuits: (1) ICE engine circuit using FL22 long-life coolant, and (2) HV battery/inverter/motor cooling circuit using Mazda PHEV-specific coolant. Do NOT cross-contaminate the two circuits. ICE coolant: first change at 5 years, then every 3 years. HV cooling circuit: dealer service only — requires special equipment. Never use generic green coolant in either circuit.
CX-90 PHEV has two separate cooling circuits: (1) ICE engine circuit using FL22 long-life coolant, and (2) HV battery/inverter/motor cooling circuit using Mazda PHEV-specific coolant. Do NOT cross-contaminate the two circuits. ICE coolant: first change at 5 years, then every 3 years. HV cooling circuit: dealer service only — requires special equipment. Never use generic green coolant in either circuit.