Opel Vectra 2005 1.8 petrol service and maintenance

Engine oil

Engine oil capacity: 5 litres (5.3 quarts)
For regular oil change Opel Vectra 2005 1.8 petrol takes approx. 4.5 litres of oil, 5 litres is total engine oil capacity.
Oil change interval is 15,000 km or one year, whichever comes first.
Recommended oil type (Oil Viscosity Classification SAE) is 5W-30 GM Dexos2

Air filter

Air filter change interval is 30,000 km.
After prolonged driving in particularly dusty conditions, it is advisable to check the condition of the air filter earlier and replace it if the filter is visibly dirty.

Fuel filter

Opel Vectra 1.8 petrol fuel filter change interval is 30,000 km

Spark plugs

Replacement interval for spark plugs is 30,000 km.

Timing belt

Manufacturers recommended timing belt replacement interval for Opel Vectra 1.8 petrol is 120,000 km.
The experience of Opel Vectra owners confirms that timing belt does in fact last for the specified mileage.
Running your car in aggressive environments (e.g. salt, sand, etc.) causes timing belt to degrade faster and reduces its lifespan; under such conditions, the belt may need to be replaced sooner.

Serpentine (drive) belt

Opel Vectra 2005 GTS 1.8-16V serpentine or alternator belt replacement interval is 90,000 km.

Engine coolant

Engine coolant (antifreeze) recommended replacement interval for Opel Vectra 1.8 petrol is 45,000 km or 3 years, whichever comes first.
Coolant capacity is 6.3 litres