Whether No. 95 gasoline and No. 92 gasoline can be mixed, in fact, is divided into three situations:
First, in the past, the original factory of their own vehicles was calibrated to use No. 95 gasoline, and now they cannot be mixed with No. 92 gasoline;
Second, the original calibration of their own vehicles used No. 92 gasoline, and now they can mix and fill No. 95 gasoline;
Third, in the past, the original factory of my own vehicle was calibrated to use No. 92 gasoline, but after buying a car, I have been using No. 95 gasoline, and now I want to mix and fill No. 92 gasoline.
Gasoline label meaning
Gasoline label generally refers to the anti-knock performance of gasoline, the higher the label, the higher its octane number, which means that the better the knock resistance of gasoline. When the engine is working, it will produce knocking, and the better the detonation and shock resistance effect of gasoline, the more power the vehicle will be! However, it is not that the higher the number, the better the car, but to look at the vehicle's engine compression ratio (compression ratio refers to the degree to which the engine mixture is compressed) interval to determine, the engine with a high compression ratio is prone to detonation, so it needs to be filled with high-grade gasoline. For example, if the Haval H6 1.5T engine compression ratio is about 9.3, it is more suitable for using 92 gasoline, because No. 92 gasoline is suitable for gasoline cars with engine compression ratios between 8.6 and 9.9; and No. 95 gasoline is suitable for gasoline cars with engine compression ratios between 10.0 and 11.5; No. 98 gasoline is suitable for gasoline cars with engine compression ratios of more than 11.6.
Is it feasible to switch low-grade gasoline to high-grade gasoline?
From a theoretical and practical point of view, the fuel label of the engine can be upgraded from a low label to a high label, because the engine has considered the compatibility of various oils at the beginning of development, which means that although the official requires (recommended) to add a certain label gasoline, in fact, it can be filled with a higher label of gasoline. However, after adding high-grade gasoline, the engine power will not change significantly, because the engine of your vehicle may not be calibrated for high-grade gasoline, which means that after adding high-grade gasoline, the engine will still operate according to the previous setting of low-grade gasoline. Therefore, I personally suggest that if there is no special requirement, there is no need to upgrade the gasoline from a low label to a high label, because it will increase a large part of the cost of car maintenance, which is really not cost-effective.
Is it feasible to convert high-grade gasoline to low-grade gasoline?
From a theoretical and practical point of view, the fuel label of the engine cannot be reduced from high-grade gasoline to low-grade gasoline, because different gasoline labels correspond to different engine compression ratios, low labels correspond to low compression ratios, and high labels correspond to high compression ratios. If a gasoline engine that should be filled with a high grade is filled with low-grade gasoline, it will cause the vehicle power to drop and produce a knock (the piston has not yet reached the point of compression, and the mixture is ignited in advance). Therefore, it is recommended that all riders still choose the gasoline label recommended in the original factory instruction manual in the future.
The original factory added a low label, but has always used a high label, and now it is possible to change back to a low label?
If your vehicle's factory recommendation is to use low-grade gasoline, then it can be converted to the previous gasoline label, which is not a problem, because the engine combustion calibration of your car is done according to low-grade gasoline, it does not change because you have been filling high-grade gasoline for a long time, and it will not cause problems because you suddenly switch back to low-grade gasoline.
The above are the three major aspects of whether gasoline can be mixed, namely low to high, feasible; high to low, no; low to high and then low to low, feasible! I hope to help the majority of car friends and reduce the trouble of maintaining and using cars on weekdays!