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Originally Posted by rof2
(Post 183553)
I've been running 87 without any issues. I tried a tank of 91 and frankly couldn't tell the difference so why bother. I won't be running the car much in the winter so will probably fill the tank with Shell 91 or maybe Chevron 94, with a little Stabil added, for storage.
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Originally Posted by rof2
(Post 183553)
I've been running 87 without any issues. I tried a tank of 91 and frankly couldn't tell the difference so why bother. I won't be running the car much in the winter so will probably fill the tank with Shell 91 or maybe Chevron 94, with a little Stabil added, for storage.
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The difference between 87 and 91 octane is 12hp (400 to 412) in my 2012 or about 3% or so. Not something I would notice in daily driving. If you prefer to get all the engine is capable of for track days or whatever, then bye all means use 91. I wonder if 94 octane makes an improvement over 91?
Is there any other reason to use higher octane fuel other than hp, I wonder? Is it better for the engine, cleaner running or such? Really don't know. |
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