Gas (including Flexfuel variants when running on gas)
Gas Grand Voyager models commonly use the 2.4 16V and V6 families (3.0, 3.3 V6, 3.8 V6), and they tend to respond well to consistent oil and filter changes rather than stretching intervals. If your use includes lots of short trips or heavy stop-start driving, oil condition can degrade faster, so follow the interval shown for your exact engine and year. Typical maintenance also includes spark plugs, air filter, coolant condition checks, brake fluid renewal, and regular inspection of belts and hoses for age cracking. If you notice rough idle, hesitation, or higher fuel consumption, intake leaks, ignition components, or dirty sensors are common service-related causes.