If you have been refueling your 92 petrol for a year, you now need to switch to a higher grade of petrol as soon as possible to avoid more damage to the engine. Although 92 petrol can also meet the driving needs of the vehicle, in order to ensure the normal operation of the engine and prolong the service life, it is best to use a higher grade gasoline.
Replacing with a higher grade of gasoline is not complicated, you just need to choose a higher grade of gasoline when refueling and add it to the vehicle's fuel tank. When refueling, ask the gas station staff which gasoline is better for your vehicle and follow the advice to choose.
In addition to changing the gasoline designation, there are other measures that can be taken to protect the engine, such as regular maintenance, changing the air filter, etc. These measures can ensure the normal operation of the engine and improve the performance and life of the vehicle.
In short, if you have been given a year of 92 gasoline, it is time to replace it with a higher grade as soon as possible to protect the engine and extend its life. At the same time, measures such as regular maintenance and replacement of air filters should also be paid attention to ensure the normal operation and performance of the vehicle.