JDM Swaps/ JDM ECU/ USDM Fuel

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
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FinkenS14
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Joined: Sun Dec 14, 2008 4:08 pm
Car: 1995 Nissan 240sx S14
Location: Thornton, Colorado
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Hey guys I was wondering. With JDM cars, Ive heard all they run over there is 107+ octane fuel. So when you take one of these motors (ie my RB25), and go throwing USDM 91 octane in it, is it going to knock, and throw everything off?

Just something that has been puzzling me for a while, and I thought Id bring it up.

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numbnuts240
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Car: 1999 Ford Exploder 4-door 5spd
1974 Datsun Fairlady-Z 250GT
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i'm going to go ahead and say you're safe running 91/93 since i've never heard of anyone having any issues.
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FinkenS14
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Joined: Sun Dec 14, 2008 4:08 pm
Car: 1995 Nissan 240sx S14
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numbnuts240 wrote:i'm going to go ahead and say you're safe running 91/93 since i've never heard of anyone having any issues.
Ya the reason I said 91 is because I live in Colorado and thats all they sell here.

But we also got a plentiful amount of E85
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Morph
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Joined: Sat Dec 13, 2003 9:02 pm
Car: 91 Sr Powered Coupe

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I'm sure they have a different rating system over there.

BTW i've been running 93 in my blacktop for 5+ years.
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