89 octane vs 93 octane
#3
Registered Member
Depends on your altitude and driving. 3000+ feet above sea level 93 is only needed when FI really. If you live near sea level, and take your engine above 3000rpm or something just put the premium in it.
#4
Here ya go... pages and pages of information and feedback ![Smilie](https://www.myg37.com/forums/images/smilies/smile.gif)
https://www.myg37.com/forums/g37-sed...1-or-93-a.html
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https://www.myg37.com/forums/g37-sed...1-or-93-a.html
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1nceBitn2wceShy (06-09-2016)
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#9
#10
Premier Member
![](/images/premier.gif)
iTrader: (13)
My gas cap says premium so I use nothing but 93 on mine (since day 1). Just a year ago 93 was almost $4 now it's $2.30 here so why not!? ![Big Grin](https://www.myg37.com/forums/images/smilies/biggrin.gif)
Also, similar thread with 6 pages on related subject https://www.myg37.com/forums/g37-sed...1-or-93-a.html
![Big Grin](https://www.myg37.com/forums/images/smilies/biggrin.gif)
Also, similar thread with 6 pages on related subject https://www.myg37.com/forums/g37-sed...1-or-93-a.html
Last edited by Vizard_87; 03-14-2016 at 08:34 AM.
#12
All I've ever used is 93 on every car I've owned.
#14
The owner's guide for my 2013 G37 6MT indicates that 93 Octane is required.
We could use 87 or 89 octane and the computer will adjust timing, etc to compensate. However, performance will suffer. Not clear about impacts on longevity, gas mileage, or emission control system. I would only do this in case of emergency, to also avoid risking issues with these new sensitive engines.
Requiring 93 octane is very different from my two Maximas where 93 was recommended. I used regular without any problem. I do take good care of our cars and logged over 300,000 on one of those Maximas.
Hope this helps
We could use 87 or 89 octane and the computer will adjust timing, etc to compensate. However, performance will suffer. Not clear about impacts on longevity, gas mileage, or emission control system. I would only do this in case of emergency, to also avoid risking issues with these new sensitive engines.
Requiring 93 octane is very different from my two Maximas where 93 was recommended. I used regular without any problem. I do take good care of our cars and logged over 300,000 on one of those Maximas.
Hope this helps
#15
Registered Member
FUEL INFORMATION
VQ37VHR engine
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:
. Have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium gasoline as soon as possible.
. Avoid full throttle driving and abrupt acceleration.
Use unleaded premium gasoline for maximum vehicle performance.
VQ37VHR engine
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:
. Have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium gasoline as soon as possible.
. Avoid full throttle driving and abrupt acceleration.
Use unleaded premium gasoline for maximum vehicle performance.
To the naysayers: why do you think Nissan insists on premium fuel? Do you think they're colluding with gasoline retailers to get more of your hard-earned money?