Chery Tiggo 8 Engine Compression Ratio?
3 Answers
Chery Tiggo 8 engine compression ratio is 9.5. It can use 92-octane gasoline. Engine compression ratio: It is the ratio of the total cylinder volume to the combustion chamber volume in an internal combustion engine, which is an important structural parameter. When the piston is at bottom dead center, the cylinder has its maximum volume, denoted as Va; when the piston is at top dead center, the volume inside the cylinder is called the combustion chamber volume, denoted as Vc. The compression ratio ε of an internal combustion engine is ε=Va/Vc. Compression ratio and fuel standards: 90-octane gasoline is suitable for gasoline vehicles with an engine compression ratio below 8.5. 92-octane gasoline is suitable for gasoline vehicles with an engine compression ratio between 8.6-9.9. 95-octane gasoline is suitable for gasoline vehicles with an engine compression ratio between 10.0-11.5. 98-octane gasoline is suitable for gasoline vehicles with an engine compression ratio above 11.6.
The engine compression ratio of the Chery Tiggo 8 mainly depends on the specific engine model. The 1.5T engine has a compression ratio of approximately 9.5:1, while the 1.6TGDI can reach up to 10.5:1. A higher compression ratio means more complete combustion, which can improve power response but may also increase the risk of knocking, especially during acceleration—pay attention to the fuel grade. When I used this car before, I found that low-octane fuel could easily cause engine noise, so I recommend using 95-octane fuel to maintain optimal performance. Regular maintenance of spark plugs can also prevent compression ratio issues from affecting driving smoothness. The compression ratio varies significantly between different models, so ask the salesperson when buying the car to avoid costly repairs later.
As an experienced driver who has driven the Tiggo 8 for several years, the compression ratio is quite a critical issue. For example, the 1.6T version has a high ratio of 10.5:1, which delivers strong acceleration but consumes more fuel, while the 1.5T with 9.5:1 is more fuel-efficient and suitable for urban commuting. A compression ratio that's too high can cause the engine to overheat, especially in summer. My car once experienced rapid radiator temperature rise, forcing me to install an additional cooling system as a preventive measure. This directly impacts long-term vehicle ownership costs. Nowadays, repair shops recommend compression ratio-related checks every six months—don’t slack off on this.
