What are the consequences of using 92 octane gasoline in an old Toyota Reiz?
1 Answers
The old Toyota Reiz requires 95 octane gasoline. Vehicles that use 95 octane gasoline should not use 92 octane gasoline, as it can lead to insufficient anti-knock performance, increased engine failure rates, higher fuel consumption, more carbon deposits, and clogged fuel injectors. Reason Analysis: Generally, the fuel grade recommended on the vehicle's fuel tank cap should be followed, or a higher grade can be used. However, using a lower grade is not advisable. Vehicles that use 92 octane gasoline can use 95 octane gasoline, but vehicles that require 95 octane gasoline should not use 92 octane gasoline. The main difference between different gasoline grades lies in their anti-knock performance, which is a crucial indicator of fuel quality. 92 octane gasoline has a 92 octane rating and is suitable for mid-range vehicles (with lower compression ratios). 95 octane gasoline consists of 95% isooctane and 5% n-heptane and should be used in engines with higher compression ratios. 98 octane gasoline has an octane rating equivalent to a mixture of 98% isooctane and 2% n-heptane. Its advantages include "two highs and two lows": higher anti-knock performance and power output, along with lower harmful substances and exhaust emissions. Fueling Precautions: Do not arbitrarily switch gasoline grades. Switching to a lower grade may cause premature combustion, leading to engine knocking. Incomplete combustion can also increase carbon deposits, clogging ducts and injectors, and result in reduced vehicle power and increased fuel consumption.
