want to know do all jdm engine have to run 93 octane gas,will 87 cause problems?
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Yes , depending on their compression ratio.
1993 Honda Accord LX 2004-2009
1996 Honda Civic LX 2009-2012
2012 Kia Optima LX 2012-2013
2010 Honda Accord EX-L V6 2013-2018
2007 Honda Fit Sport 2017-2017
2018 Honda Accord EX-L 2.0T 2018-20XX
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the non vtec ones should be fine. the vtec dohc ones have higher compression and should run 93 octaneComment
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On top of those, I'm pretty sure the H23A DOHC non VTEC takes premium. I think that's one of the only non VTEC engines that requires it.Originally posted by Jonas View PostOriginally posted by deevergote.Comment
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ive ran 87 a few times. just wouldnt recommend at all!
no
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that is a usdm engine though. the japanese got the f22b dohc instead of the h23. but yes i believe you are right.Originally posted by 91 EX-R View PostComment
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how about 91 octane?Comment
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If you don't bypass the knock senser put what you want in it...Last edited by ChIoVnIdCa; 01-09-2009, 01:57 PM.
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I run 91 octane and it runs fine. I should honestly run a higher octane but California only offers 91 in common gas stations. Octane booster might help, but I'm a little skeptical about those types of products. I wonder if they actually work or have an effect.
Anyway, 87 would be too low. Your car wouldn't run as efficient as it should.
Stick with 91 and above.
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93 'til infinity
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thank guys i'm stock right now looking at the f22b for my swap.93 octane is so high i might just stay stock .Comment
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you cant afford an extra 50 cents a gallon? your in the wrong game if thats the case buddy.
anyway the f22b should be fine on 87. its not a high compression motor.Comment
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must be nice to be able to get 93 at the pump. 91 is the highest they have here in AZ. and i agree that if you do not want to spend the extra money for the higher octane gas than i would suggest you leave your motor as stock as possible other than i /h /e.Comment
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ok thats good to know about the f22b,just looking ahead down the road on my expenses.Comment
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Why are you guys running such high octane? Unless you got some crazy NA build,running nitrious or boosted,anything over 91 is pointless.
Just my .02 centsComment
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Man just get the JDM F22B because that motor has a lower compression ratio than my USDM H23 and I run 89 octane with no problems.Originally posted by 19TcappaLX View PostComment
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