I am deciding between a g35 coupe and sedan and am confused. Don't these have the same engines? Why does the ownre's manual okay using lower octane gas in the sedan only? I am used to the higher gas in my Maxima, but would choose the sedan for the cheaper gas prices if possible.

 

Amongst other things, the Coupe engine has slightly more aggressive ignition timing, requiring the higher octane.
I'm not sure about the requirement for the '05 Sedan. It may also require premium.

<font color=red>GSM</font color=red>
<font color=red>GSM</font color=red>
<font color=black>Silverstone Coupe</font color=black>

 

i think i read in the 05 manual that sedans require premium. i could be wrong, im usually not... but it's possible


mantis@EFnet
2004 SV1000S
1997 CBR600F3

 

Check this out.

http://www.infinitihelp.com/Infiniti...ifications.htm

2004.5 AT Sedan DG Premium Sport<P ID="edit"><FONT class="small"><EM>Edited by gsedanman on 10/20/04 11:37 AM.</EM></FONT></P>

 

Straight out of the 05 owners manual:
FUEL RECOMMENDATION
Sedan models
Use unleaded regular gasoline with an octane
rating of at least 87 AKI (Anti-Knock
Index) number (Research octane number
91).
For improved vehicle performance,
INFINITI recommends the use of unleaded
premium gasoline with an octane
rating of at least 91 AKI number (Research
octane number 96).
Coupe models
Use unleaded premium gasoline with an
octane rating of at least 91 AKI (Anti-
Knock Index) number (Research octane
number 96).
If premium gasoline is not available, unleaded
regular gasoline with an octane
rating of 87 AKI number (Research octane
number 91) may be temporarily used, but
only under the following precautions: