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» Northern California Ford Owners     » Automotive   » Tech Talk   » fuel questions

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Author Topic: fuel questions
E@$T P@LO @LTO $T@NG$
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Can i use 91 octane if the car has been tuned to 100 octane [Confused]
Posts: 223 | From: EAST PALO ALTO | Registered: Jul 2008  |  :
ed650
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No you cannot, it has to be retuned for 91 or else you will have problems.

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410w Hatch
306Ci Coupe
Posts: 1744 | From: menlo park | Registered: Apr 2010  |  :
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So it would have to be re tuned
Posts: 223 | From: EAST PALO ALTO | Registered: Jul 2008  |  :
E@$T P@LO @LTO $T@NG$
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And do you know if there is a fuel additive they can add to bring up the octane
Posts: 223 | From: EAST PALO ALTO | Registered: Jul 2008  |  :
ed650
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There's 104 octane additive but some say it works some say it doesn't you can try it and see how the car feels. If it keeps trips out you should retune for 91. Do you know the compression ratio on that motor? If the compression is over 11:1.1 it's recommended you run 94+
Posts: 1744 | From: menlo park | Registered: Apr 2010  |  :
BLACKOUTLAW
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My brother has done it in the past but just don't step on it? you should be OK as long you just cruise, Them when you finish the 91 gas just go back to 100 as long you don't lean out you should be ok. shit or just mix it with 100octane lol we also done that just like I said don't get on it [burnout]

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THE HEART BEAT STOPS HERE!
Posts: 476 | From: SOL CAL | Registered: May 2006  |  :
E@$T P@LO @LTO $T@NG$
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Thanks for the feed back fellas
Posts: 223 | From: EAST PALO ALTO | Registered: Jul 2008  |  :


 
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