Using 89 Octane.....
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Joined: Sep 2006
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From: In the USA - Baby
Using 89 Octane.....
Gentleman,
Out of curiosity, how many of you use 89 octane. I know the Z is rated for 91+ octane. And that is what is put in my 06 for everyday street driving. But in a search on this matter, I've seen that some of you claim that you use 89 and your dealers have said that was okay.
So I was wondered if I had a long road trip say down the 5 freeway (those of us in CA, know the 5 is a straight shot for hundreds of miles between LA and SF). On something like that, would 89 octane be okay? Or am I risking ruining my engine.
Out of curiosity, how many of you use 89 octane. I know the Z is rated for 91+ octane. And that is what is put in my 06 for everyday street driving. But in a search on this matter, I've seen that some of you claim that you use 89 and your dealers have said that was okay.
So I was wondered if I had a long road trip say down the 5 freeway (those of us in CA, know the 5 is a straight shot for hundreds of miles between LA and SF). On something like that, would 89 octane be okay? Or am I risking ruining my engine.
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Joined: May 2006
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From: sims, nc
Like almost all modern EFI/ECU-controlled engines, our cars have a knock sensor, and an ignition (timing) control loop. And our engines were designed for optimum performance with premium (knock-resistant) fuel.
Your car will run OK on lower octane, but if there is any input from the knock sensor (and there WILL be), then the ECU will retard timing, and lower performance.
Why would you buy a high performance car if you don't want high performance?
bill
Your car will run OK on lower octane, but if there is any input from the knock sensor (and there WILL be), then the ECU will retard timing, and lower performance.
Why would you buy a high performance car if you don't want high performance?
bill
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Thread Starter
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Joined: Sep 2006
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From: In the USA - Baby
Where are you guys finding 93+ octane.
In CA, all I can find is 91.
I agree with you guys on using 89 and 91. The cost savings is so low it's just not worth it.
But I wondered if I was forced to use 89, could the engine handle a full tank without major damage.
In CA, all I can find is 91.
I agree with you guys on using 89 and 91. The cost savings is so low it's just not worth it.
But I wondered if I was forced to use 89, could the engine handle a full tank without major damage.
93 only for me as well.
. IMO use the highest available to you..and every now and then run a tank of 100 through it 
.
