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G35 & G37, Coupes & Sedans

Regurlar Unleaded or Premium?

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Old Apr 18, 2007 | 03:04 PM
  #16  
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Is there a sticker on the inside surface of the gas door or around the gas filler? If so what does it read regarding what octane to use?

EDIT: RIGHT! My point being to the OP Rocky Mountain, do what the sticker says! If the car requires premium, put in premium. If the car requires regular, put in regular, unless you want max performance so you can dust off those pesky Yugos, Yarises, and Trabants .
 

Last edited by gwhiz35; Apr 19, 2007 at 01:42 PM.
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Old Apr 18, 2007 | 04:02 PM
  #17  
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Originally Posted by gwhiz35
Is there a sticker on the inside surface of the gas door or around the gas filler? If so what does it read regarding what octane to use?
THERES HOULD BE ONE.. MINE SAYS PREMIUM FUEL ONLY

oops CAPS was on
 
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Old Apr 18, 2007 | 05:08 PM
  #18  
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Originally Posted by gwhiz35
Is there a sticker on the inside surface of the gas door or around the gas filler? If so what does it read regarding what octane to use?
Mine said:

Unleaded fuel only.
Premium fuel recommended for maximum performance.
 
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Old Apr 18, 2007 | 09:04 PM
  #19  
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Originally Posted by trey's wife
Guys you can only download the manuals for the current couple of years, now I think it is 06 and 07. If his car is before then, that doesn't help much.

The following apply if you have a sedan (I don't have a coupe manual to reference so I'm not going to say it is a blanket equal though it *should* be)

If you have an 03-06 automatic you have the option of putting in regular though it says you will get better performance from premium.

If you have an 03-06 manual then I am 99% sure the manual says that premium is required.

I assume you do not have an 07 without a manual so hopefully the above will help you.
The owners manual is the same for the coupe and sedan. (At least mine is)

It says:

Sedan 6MT: 91 Required
Sedan 5AT: 87 Required, 91 Recommended.

Coupe All Models: Premium Required

The interesting part, is that in 05', the Sedan 5AT and Coupe 5AT have the same engine, but the fuel requirements did not change. Coupe still requires 91, Sedan still says recommended. Personally, I think they just never updated the owners manual.
 
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Old Apr 18, 2007 | 09:07 PM
  #20  
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doesn't it SAY PREMIUM on the backside of the gas cover?
 
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Old Apr 18, 2007 | 09:11 PM
  #21  
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Mine said premium RECOMMENDED for best performance.
 
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Old Apr 19, 2007 | 02:59 AM
  #22  
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My 03 6mt coupe says premium unleaded only.
 
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Old Apr 19, 2007 | 07:34 AM
  #23  
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From: Oklahoma
There have been 2 tanks of gas over 3 1/2 years were I put 87 octane in and I noticed it driving less than perfect. Time of year? Slightly bad grade of gas?

I'm arbitrary about gas. If I'm thinking money, I'll put 87 in. I'll put in 89 or 91 sometimes, even though it really doesn't make a difference.
 
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Old Apr 20, 2007 | 12:01 PM
  #24  
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'04 5AT coupe
Premium only
 
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Old Apr 20, 2007 | 12:22 PM
  #25  
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From: chula vista (SD)
91 always - w/ occasional lucas cleaner or RACE GAS ( dilluted ) buying race gas for 9.00 a gallon is so much cheaper than paying the same price for oz.'s ( of course - always diluuted w/ 91 )
 
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Old Apr 20, 2007 | 12:30 PM
  #26  
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Paper or plastic...........?

It says on the gas door to use premium....why use anything less?
 
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Old Jul 19, 2010 | 02:56 AM
  #27  
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Wtf?
 
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Old Jul 19, 2010 | 03:47 AM
  #28  
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Originally Posted by samlin89
hey how do u post a question on here?
You already asked that in the other fuel topic...
 
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