BRZ _ U. book 225 ページ 2024 年 6 月 14 日 金曜日 午前 9 時 14 分
7-1. Fuel
CAUTION
� Use of a fuel which is low in quality or use of an inappropriate fuel additive may cause damage to the engine and / or fuel system.
� Some gas stations, particularly those in high altitude areas, offer fuels posted as regular octane gasoline with an octane rating below 93 AKI( 98 RON). Use of those fuels are not recommended.
■ Fuel Requirements
The engine is designed to operate using unleaded gasoline with an octane rating of 93 AKI( 98 RON) or higher.
If unleaded gasoline with an octane rating of 93 AKI( 98 RON) is not available, unleaded gasoline with an octane rating of 91 AKI( 95 RON) may be used with no detriment to engine durability or driveability.
However, you may notice a slight decrease in maximum engine performance and you may hear some knocking( pinging) from the engine while using 91 AKI( 95 RON) fuel. Use of 91 AKI( 95
RON) fuel will not affect your warranty coverage. ▼ Fuel octane rating
Using a gasoline with a lower octane rating can cause persistent and heavy knocking, which can damage the engine. Do not be concerned if your vehicle sometimes knocks lightly when you drive up a hill or when you accelerate. See your dealer or a qualified service technician if you use a fuel with the specified octane rating and your vehicle knocks heavily or persistently.
▽ RON
This octane rating is the Research Octane Number.
▽ AKI
This octane rating is the average of the Research Octane and Motor Octane numbers and is commonly referred to as the Anti Knock Index( AKI).
▼ Unleaded gasoline
The neck of the fuel filler pipe is designed to accept only an unleaded gasoline filler nozzle. Under no circumstances should leaded gasoline be used because it will damage the emission control system and may impair driveability and fuel economy.