Fuel 271 |
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7-1. Fuel
CAUTION
s07aa
. 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 87 AKI( 90 RON). Use of those fuels are not recommended.
& Fuel Requirements s07aa01
The engine is designed to operate using unleaded gasoline with an octane rating of 91 AKI( 95 RON) or higher. If 91 AKI( 95 RON) fuel is not readily available, unleaded gasoline with an octane rating of 87 AKI( 90 RON) may be used.
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Regular unleaded gasoline with an octane rating of 87 AKI( 90 RON) or higher may also be used. Using regular unleaded gasoline will not be detrimental to engine durability, nor will it affect your warranty coverage. However, depending on your driving habits and conditions, you may |
notice a decrease in maximum engine performance, fuel economy or slight engine vibration or knocking. If you experience any of these conditions while using a lower octane rated fuel, you may want to return to using 91 AKI( 95 RON) octane rated fuel as soon as possible. Additionally, if your vehicle knocks heavily or persistently, the use of 91 AKI( 95 RON) or higher grade unleaded gasoline is required.
! Fuel octane rating s07aa0103
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 s07aa010301
This octane rating is the Research Octane Number.
! AKI s07aa010302
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).
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! Unleaded gasoline s07aa0104
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.
! Reformulated gasoline s07aa0128
SUBARU supports the use of reformulated gasoline when available. Reformulated gasoline has been blended to burn more cleanly and reduce vehicle emissions.
! MMT s07aa0106
Some gasoline contains an octane-enhancing additive called MMT( Methylcyclopentadienyl Manganese Tricarbonyl). If you use such fuels, your emission control system performance may deteriorate and the CHECK ENGINE warning light / malfunction indicator light may turn on. If this happens, return to your authorized SUBARU Dealer for service. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty.
! Gasoline for cleaner air s07aa0129
Your use of gasoline with detergent additives will help prevent deposits from forming in your engine and fuel system. This helps keep your engine in tune and
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7
Starting and Operating
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