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High octane gas will not hurt your Subaru's motor but will offer little to no advantage over the regular grade gas that the manufacturure recommends.
High octane fuels resist detonation better then regular octane fuel, this is required in high performance high compression engines like the Suburu STI turbo motor, your car has the regular compression non-turbo motor so save your money and just get the regular grades. Detonation- When the fuel ignites and explodes before the spark plug fires, causes knocking sounds and can hurt the motor. Compression- the squeeze force in the combustion chamber, the higher the compression the greater the heat and the higher the risk that the fuel will detonate unless a higher octane fuel is used. Diesel engines use high compression alone to ignite the fuel mixture hence they have no need for spark plugs but require diesel fuel rather than gasoline.
What else can I help you with?
What type of gasoline does a Subaru Outback take?
Unleaded; minimum 87 octane for normally aspirated engine
Will unleaded plus gasoline damage your car?
to all u retards out there that think supreme unleaded gas will damage your engine it wont the truth is supreme unleded gas is meant for high performance engines because of the higher octane level but however if you think supreme unleaded will help clean ur engine or help it run better it wont your probally just wasting your money but however it wont hurt ur engine just cus it says UNLEADED only hints UNLEADED, UNLEADED plus, and supreme UNLEADED its all UNLEADED its just a higher octane level and may contain more ethanol. i drive a 92 Lincoln town car and the previous owners didnt take care it that well and also ran it on regular unleaded somtimes i dnt have the money but when i run it on supreme unleaded i can feel the difference in the way it accelerates better and doesnt pull as much and sumtimes it will studer with regular unleaded gas. so yea but u can also just buy some octane booster i prefer prestone. later retards
Your Subaru impreza wrx 1995 engine light came on after you washed the engine why?
why the engine light of my subaru came on after i washed the engine
What size engine does the 2013 Subaru Outback have?
The 2013 Subaru Outback has a flat 4 engine.
What size engine does the 2006 Subaru Forester have?
The 2006 Subaru Forester has a flat 4 engine.
What size engine does the 2009 Subaru Impreza have?
The 2009 Subaru Impreza has a flat 4 engine.
What size engine does the 2005 Subaru Impreza have?
The 2005 Subaru Impreza has a flat 4 engine.
What size engine does the 2008 Subaru Legacy have?
The 2008 Subaru Legacy has a flat 4 engine.
What size engine does the 2001 Subaru Impreza have?
The 2001 Subaru Impreza has a flat 4 engine.
What size engine does the 2002 Subaru Outback have?
The 2002 Subaru Outback has a flat 4 engine.
What size engine does the 2001 Subaru Forester have?
The 2001 Subaru Forester has a flat 4 engine.
What size engine does the 2009 Subaru Tribeca have?
The 2009 Subaru Tribeca has a flat 6 engine.
