Opel Vectra 2002 2.0 petrol service and maintenance

Engine oil

Engine oil capacity: 5.7 litres (6 quarts)
Recommended oil type (Oil Viscosity Classification SAE) is 5W-30

Timing chain

There is no manufacturer specified replacement interval for the engine timing chain on Opel Vectra 2002 2.0 petrol, expecting it to last until the engine is overhauled (approximately 260,000 km - 430,000 km).
Based on real life experience, the Opel Vectra 2002 GTS 2.0 Turbo timing chain change interval is approximately 200,000 km as at this mileage it may become overstretched and require replacement, so it is recommended to check the condition of the chain periodically after this mileage is reached and replace the timing chain if it becomes excessively stretched or if unusual engine noises occur.