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Discussion Starter · #1 · (Edited)
Gas

I hope the Z enjoys 87 octane. Here in North Carolina where I live, that is all that's being delivered due to the media fed gas frenzy.
 

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My '04 runs just fine on 87 octane (per the owners manual). I tried 93 and then 89 octane, but really can't tell any difference in performance, gas mileage , etc.
 

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Discussion Starter · #5 ·
I haven't noticed any difference except maybe a drop off in miles per gallon. I may have to experiment with a tanks of gas to see if it starts knocking.
 

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I have an 04 and underneath the seat it recommends 91. If you run a lower octane your engine will start knocking.
The owners manual for my '04 says 91 RON, which is 87 octane. As stated in my earlier post, been using 87 octane for quite a while now and the engine performs fine with no knocking. The 87 burns faster too. :cheers-004:
 
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