switching fuel from 89 to 93 - Mustang Evolution

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Old 04-05-2014, 07:48 PM   #1
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switching fuel from 89 to 93

Hi everybody. I have a question I recently bought my 98 Mustang GT when I bought it from the guy he said he's always ran 89 octane in it. so I've been running 89 octane in it since I've had it for about 5 months. My question is can I switch over and start running 93 octane in it or will it damage anything car seems to run fine with 89 in it and it doesn't ping or anything. Also will the car run a lot better as far as fuel mileage and maybe a lil bit more power difference wise with 93 in it???
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Old 04-05-2014, 08:46 PM   #2
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Old 04-05-2014, 08:49 PM   #3
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^ lmao. Sorry but That made me laugh..

As for the OP. It will not do one thing unless you get a tune for it.

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Old 04-05-2014, 10:28 PM   #4
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Okay I understand that it won't do anything TuneIn wise. But it still doesn't answer if I could just start putting 93 in it without it messing anything up????
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Old 04-05-2014, 10:35 PM   #5
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Yes you can put it in if you want, it won't hurt anything
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Old 04-05-2014, 10:53 PM   #6
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is this the first car that you have ever taken to a gas station?
shesh... regular, mid grade, premium.. who cares .. if you can
afford it put the best gas you can in... if your broke. throw some
regular in ... unless you have a tune for a certain fuel it wont make
a difference
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Old 04-05-2014, 11:16 PM   #7
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Hey fully automatic. U really are a ****ing dickhead. No its not the first car I've ever taken to a gas station you ****ing smartass. Have you ever heard of the saying its better safe than sorry. better to ask than to just go ahead and do something you're not sure of. Anyways thank you for all the MATURE replies from everybody else..
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Old 04-05-2014, 11:42 PM   #8
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All it does is take longer to detonate for the higher the octane, it won't hurt to put it in, but there will not be any performance gain and a negligible (if any) gain in MPG, unless specifically tuned to do so. So, you would basically just be buying more expensive gas, save the money for a tuner later.
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Old 04-05-2014, 11:47 PM   #9
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sorry man didn't know you were sensitive..
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