Can I switch from 92 to 95 gasoline now?
2 Answers
An engine that previously used 92-octane gasoline can be filled with 95-octane gasoline, but long-term mixing may affect the vehicle's ignition system, fuel injection system, and engine lifespan. Below is relevant information about 92-octane gasoline: 1. Fuel Introduction: The "Motor Gasoline" (GB17930—2013) standard was jointly drafted and revised by the Petrochemical Research Institute of China Petroleum & Chemical Corporation, the Petrochemical Research Institute of China National Petroleum Corporation, and the China Automotive Technology & Research Center. Previous versions include GB17930—1999, GB17930—2006, and GB17930—2011. 2. Specified Indicators: GB17930—2013 first introduced density specifications (720～775kg/m³ at 20℃) to further ensure relatively stable vehicle fuel economy. Compared with GB17930—2011, the main changes can be summarized as "three reductions, two adjustments, and one addition".
When I drove the family's small car before, I used 92, and later switched to 95, feeling it was completely fine. The engine vibration reduced a bit, acceleration became smoother, especially lowering the risk of knocking when driving on highways. However, the fuel cost increased noticeably, costing dozens more a month, which was a bit painful. I suggest you check the vehicle manual. If it says 92 is fine, there's no need to upgrade to 95. Saving the money for fuel or maintenance would be better. My Toyota Corolla manual recommends 92, so I occasionally switch to 95 for special road conditions, like protecting the engine on mountainous roads with many slopes. For ordinary city driving, the difference between 92 and 95 isn't significant, don't be misled into spending more. If your car is a new model with a turbocharger, 95 might be more beneficial, otherwise, keep your wallet and don't waste it.
