Opel Vectra 1999 1.8 petrol service and maintenance
Engine oil
Engine oil capacity: 4.3 litres (4.5 quarts)
Recommended oil type (Oil Viscosity Classification SAE) is 5W-30
Timing belt
Manufacturers recommended timing belt replacement interval for Opel Vectra 1.8 petrol is 60,000 km.
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.
Gearbox service
The maintenance interval (oil change, filter, if any, replacement) for Opel Vectra automatic transmission is 60,000 km.
Gearbox oil specification is ATF Dexron III. Partial oil change takes 3.5 litres (3.7 quarts) of oil, while total gearbox oil capacity is 7.2 litres (7.6 quarts).
Gearbox maintenance information is provided for Aisin AW50-40LS gearbox. Before servicing, make sure your car has this particular gearbox.

Opel Vectra 1999 1.8i-16V 2000 - 2002 Opel Vectra 1999 technical data
Opel Vectra 1999 owner reviews
Always consult your vehicle manufacturer's service manual for service intervals and specifications!