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Author
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Topic: Fuel Octane
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Gear Head
JARED
Member # 779
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posted
 
 
I have always put 91 octane from the 76 station in my car. I was a little low on cash last week and went ahead and put in 89 octane from the same 76 station. My car has just the regular bolt ons and it's a 91' mustang.
Can your car actually lose hp if you run too high of an octane than you really need to?
I feel like my car is a lot quicker with the 89 than it was with the 91, or is it just in my head?
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Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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cheap
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Member # 858
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posted
Yes you can. Higher octanes are harder to burn, which is what makes them a requirement for high compression or high boost engines. The higher flashpoint helps prevent/reduce detonation. Unless you need high octane I always recommend running the lowest octane gas you can without detonation (87).
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1965 Spyder GT
Posts: 1358 | From: Maine | Registered: Feb 2002
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Stimson
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Member # 51
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posted
Try 87 octane next. That's what I run. If it pings, stick with 89.
Posts: 2373 | Registered: Jun 2000
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hidnn.o.s.
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Member # 1219
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posted
quote:
Originally posted by cheap:
Yes you can.
Higher octanes are harder to burn, which is what makes them a requirement for high compression or high boost engines. The higher flashpoint helps prevent/reduce detonation. Unless you need high octane I always recommend running the lowest octane gas you can without detonation (87)
Said PERFECTLY
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Gear Head
JARED
Member # 779
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posted
Thanks a lot guys.
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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