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What is the normal engine RPM when the car speed is 120 km/h?

1 Answers
DiCalvin
07/30/25 1:34am
When the car speed is 120 km/h, the engine RPM is generally between 1800-3200. The relationship between engine RPM and car speed: Car speed equals engine RPM multiplied by the current gear ratio of the transmission multiplied by the wheel circumference. Therefore, car speed is related to both RPM and the current gear. At higher speeds, the RPM tends to be higher, but the actual speed also depends on the current gear. The relationship between engine RPM and fuel consumption: When the RPM is low, the engine's fuel injection decreases, reducing the amount of gasoline required to maintain the car's operation, resulting in lower fuel consumption. Therefore, if a car aims to be fuel-efficient, attention must be paid to the engine RPM. However, RPM and fuel consumption are also influenced by many other factors.
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It is recommended to go to a 4S shop for car maintenance. The following are the reasons for recommending a 4S shop for car maintenance and the items for car maintenance: Reasons for recommending a 4S shop for car maintenance: The maintenance at a 4S shop is relatively professional and meticulous, with the use of computers to read fault codes, and protective pads will be placed near the engine compartment to prevent the car paint from being scratched or dirtied. If you want to repair the car while maintaining it, most parts can be replaced on-site at the 4S shop. Items for car maintenance: The replacement of engine oil and oil filter is mainly for the maintenance of the lubrication system; the cleaning and maintenance of the air filter element depends on the usage environment; components such as brake fluid, transmission oil, battery, throttle, fuel injector, and brake pads are all inspection items during routine maintenance, and maintenance is carried out according to the usage condition.
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What is the fuel consumption of a 1.8T car?

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What documents are required to obtain the inspection exemption label?

According to regulations, motor vehicles that meet the 6-year inspection exemption criteria are exempt from the on-site inspection (i.e., vehicle inspection) process. However, it is still necessary to apply for the annual inspection compliance label (i.e., the label affixed to the front windshield, which has now been digitized nationwide) every two years. In other words, the exemption only eliminates the vehicle inspection step, but the annual inspection label must still be applied for biennially. The following documents must be fully prepared: 1. "Motor Vehicle Inspection Label Application Form" (applicable to vehicles exempt from inspection within 6 years, provided at the service window); 2. Original and photocopy of the vehicle owner's identity proof; 3. Original and photocopy of the vehicle's registration certificate; 4. Original copy of the compulsory traffic accident liability insurance certificate (retained by the traffic management department) (i.e., the original duplicate of the compulsory insurance); 5. Original and photocopy of the vehicle and vessel tax payment or tax exemption certificate.
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