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Old Jul 14, 2006 | 05:43 PM
  #11  
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Default RE: 91 octane

Here in Nebraska, most every station carries 91 octane. Some out-of-the-way stations only have 90.
 
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Old Jul 14, 2006 | 06:25 PM
  #12  
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Default RE: 91 octane

In California most all stations have 91 .. haven't seen anything higher recently.
 
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Old Jul 14, 2006 | 06:51 PM
  #13  
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Default RE: 91 octane

Most stations in Minnesota have 91, some have 93 if your lucky. We also have the corn crap based gas which our state is big on subsidiszing....[:@]
 
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Old Jul 14, 2006 | 08:19 PM
  #14  
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Default RE: 91 octane

I've run 89 with no pinging..........couldn't find 91 at the time. Have run 89 on the roadtrips with no noticeable difference.
 
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Old Jul 14, 2006 | 08:42 PM
  #15  
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Default RE: 91 octane

Most of Texas has 93 octane, but as you go out toward West Texas I think it drops to 91(?).
 
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Old Jul 15, 2006 | 03:28 AM
  #16  
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Default RE: 91 octane

If you run less than 93 or 91 what happens?
 
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Old Jul 15, 2006 | 04:53 AM
  #17  
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Default RE: 91 octane


ORIGINAL: HTRAUD

If you run less than 93 or 91 what happens?

It self destructs. It's a conspiracy between HD and the oil companies. Running 87/89 over time is allegedly not good for the motor.
 
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Old Jul 15, 2006 | 10:05 AM
  #18  
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Default RE: 91 octane

Here in California the choices are 87,89,91.
Why is 93 availible in other states?
 
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Old Jul 15, 2006 | 10:56 AM
  #19  
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Default RE: 91 octane

My 96 Road King calls for 87 and thats what I use. Using higher octane than the manufacturer calls for does no good and could harm the engine. The engine is designed to burn a certain octane fuel and without changes to the engine the octane shouldn't be changed. This is true in all internal combustion engines, to my knowlege. I have replaced pistons on outboard engines that burned 93 instead of 87. They thought they were helping the engine and instead hurt it. This did not happen overnight but over 5 years or so.
 
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Old Jul 15, 2006 | 01:04 PM
  #20  
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From: North Jersey
Default RE: 91 octane

Every state has different additive and octane requirements. The oil companies must produce as many as 40 different blends of gas for various regional markets. It is also seasonal. Winter blends, summer blends, etc.. This is one of the biggest reasons why fuel prices are so crazy. Thank you EPA.
 
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