what octane rating do you put in your cube? - Nissan Cube Life - Nissan Cube Car Forums
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post #1 of 69 (permalink) Old 06-16-2009, 02:08 AM Thread Starter
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what octane rating do you put in your cube?

low, mid, premium fuel? anyone notice a difference? gas isn't s'posed to vary too much between stations/ companies, right? so far, been putting premium stuff in mine.

what are your thoughts and what are you putting in the tank?


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post #2 of 69 (permalink) Old 06-16-2009, 04:31 AM
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Re: what octane rating do you put in your cube?

I'm just using 87 octane in mine. In my opinion, you are just wasting money by putting premium in your Cube.

If you are in the USA, by law, the three grades at any gas station are all supposed to have the exact same amount and type of detergent/additive package in them.

However, there is a thing called Top Tier Gasoline...
http://en.wikipedia.org/wiki/Top_Tie...rgent_Gasoline




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post #3 of 69 (permalink) Old 06-16-2009, 05:30 AM
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Re: what octane rating do you put in your cube?

I'm also using 87 octane.
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post #4 of 69 (permalink) Old 06-16-2009, 09:45 AM
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Re: what octane rating do you put in your cube?

87 for me as well!

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AKA: "Willy's Cube"
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post #5 of 69 (permalink) Old 06-16-2009, 11:09 AM
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Re: what octane rating do you put in your cube?

I've been using Mid-grade....what is that? 89? I have NEVER gone with more than 87, but figured I want to treat this one right! It's not like I expect higher performance or anything, but the difference between grades is really only a couple dollars in the end. With a .30 cent difference between grades you still only pay about $3.00 - $4.00 difference per fill-up. That adds up in the long run, but if I seriously looked at how much I pay for gas annually, I would be pissed off anyway! So.....I keep it simple and take it a tank at a time.

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post #6 of 69 (permalink) Old 06-16-2009, 09:37 PM
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Re: what octane rating do you put in your cube?

I have been using Low (87) as well. I have heard people say that it's best to use what is recomended in the manual, and that higher or lower grade gas could be bad for the car. I'm no expert though, so I don't knoe about that personally, but it makes sense to me.
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post #7 of 69 (permalink) Old 06-17-2009, 01:07 AM
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Re: what octane rating do you put in your cube?

Well, my 370Z requires minimum 91, however, for the cube 87 is recommended so it is probably overkill to use 91.
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post #8 of 69 (permalink) Old 06-17-2009, 06:42 PM
 
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Re: what octane rating do you put in your cube?

You can actually get worse milage if you use a higher grade fuel than recommended. I actually study Chemical Engineering and this is a topic that we have discussed before. Engines are tuned to operated with a certain octane rating. This octane rating (in the most basic sense) gives an idea of the compression required by the piston before the fuel ignites. Higher grades of fuel typically require higher compression before they ignite, hence why the regular fuel is bad for high performance engines: regular fuel combusts before the piston has fully compressed. The opposite is also true: if you have a lower performance engine, higher grade fuel will not always combust at the proper time in.

The short story: THERE IS NO REASON TO PUT HIGHER GRADE FUEL IN YOUR CUBE
post #9 of 69 (permalink) Old 06-21-2009, 08:14 PM
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Re: what octane rating do you put in your cube?

ahhhhh. Thanks Keychain.
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post #10 of 69 (permalink) Old 06-22-2009, 06:55 PM
 
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Re: what octane rating do you put in your cube?

KC is right

learn what OCTANE means

putting higher than recommended octane fuel in is a TOTAL waste of $$$$

Higher compression motors NEED higher OCTANE. These include super/turbo chanrged engines and older (70's and b4 era) engines.

If I run mid grade in my 79 Mini it bucks and backfires .... it needs "the juice". Running too LOW octane WILL cause problems (but can be 'tuned out' by things like changing the timing at an associated loss of power)

Running TOO HIGH an octane will not hurt an engine - but you will NOT get more power or higher milage. You simply burn your dollars. Learn what OCTANE is.
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