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Old March 21st 05, 03:36 AM
Rein
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On Thu, 17 Mar 2005 00:43:42 GMT, Wound Up > wrote:

>Rein wrote:
>> On Tue, 15 Mar 2005 18:05:48 -0500, "mustangGT_00"
>> > wrote:
>>
>>
>>>Hello guys,
>>>I did fuel system cleaning, changed sparks, changed fuel filter, and even
>>>changed the IAC valve, but the problem still existing. Mechanics say it's
>>>normal but i guess they say that coz they can't fix it. Any suggestion
>>>that can help would be appreciated!
>>>It's 2000 GT with 120,000 miles
>>>thnx

>>
>>
>> Stop using 89 octane, use 87 as the manual states.

>
>Why would this cause the car to stall?


Didn't say it did, but it could hide other issues. The manual states
to use 87, so use 87. All these fantasies about 'cleaner' burning,
'better' burning, etc.. Who came up with all this ? The ONLY reason to
use higher octane is for higher compression cars and/or cars with
superchargers/turbo's to prevent detonation/pinging.
Use 87.

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