The three-door hatchback Opel J GTC is only equipped with one atmospheric engine, a 1.8 litre capacity of 140 hp. The service record specifies the replacement frequency of the GRM belt of 150,000 km. However, if the Opel Astra GTC is exploited in difficult conditions, the replacement of the GRM-belt may be required earlier-90-120 thousand. km
The condition of the GRM-belt to the Opel Astra J GTC should be carefully monitored, since the valve is overtaken by the valve, so the effects can be very poor.