Do you use 87 or 89 octane? - Page 8 - Chevy Malibu Forum: Chevrolet Malibu Forums
View Poll Results: Which octane do you use?
I have a V6, and I use 87 14 13.59%
I have a V6, and I use 89 or better 28 27.18%
I have an I4, and I use 87 49 47.57%
I have an I4, and i use 89 or better 12 11.65%
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post #71 of 81 (permalink) Old 11-06-2012, 03:46 PM
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Cool Re: Do you use 87 or 89 octane?

Quote:
Originally Posted by Dalecon View Post
I watched that doc when it was on the other night, in fact twice. What it did test was a Cruz and they spoke to most cars. Ultimately the point was to check your owners manual for the 2.4 it says use 87, for the 3.6 says you can use 87 but for best performance use 89. I actually did a better job testing with my car than the report, ran a few tanks on 87, then tested at 89, got better mileage, which made the extra cost equal the mileage.

If you have a 2.4 don't buy premium, if you have a 6, its up to you, but makes sense to use 89.
... and the only thing I'll add is that for the V6 don't pay extra for 91 or 93 unless 87 is the only other choice.

(Still watching the documentary. Thanks for the link, Elvis!)


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post #72 of 81 (permalink) Old 11-06-2012, 05:21 PM
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Re: Do you use 87 or 89 octane?

at $4.80+tax a gallon here in the GTA, 87 FTW!
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post #73 of 81 (permalink) Old 11-07-2012, 05:35 AM
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Re: Do you use 87 or 89 octane?

I'm going to try 89. I'm almost out of gas..

So what's the diffrence between 87 89 91 93? Can i get a detailed answer please. Anybody?

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post #74 of 81 (permalink) Old 11-07-2012, 07:50 AM
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Re: Do you use 87 or 89 octane?

I went for a long trip and put in 91....no improved mileage over 89.

I started my car running at 87 and when I switched to 89 better mileage which equaled the increased cost of 36 cents a gallon.

The moral of the storey of the doc, is don't put in more than your car reccomends.

Thanks for specifying DrivenDaily, I meant to because I did to the test with nil results.

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post #75 of 81 (permalink) Old 11-07-2012, 07:53 AM
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Re: Do you use 87 or 89 octane?

nil benifits rather.

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post #76 of 81 (permalink) Old 11-13-2012, 05:29 PM
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Re: Do you use 87 or 89 octane?

Wow they are charging 36cents a gallon more for 89 near you? Thats insane! Around here its only 10-15cents more. I run 91 only because Sam's Club where I work only has 87 and 91, and its only 20cents more, and still way cheaper than other gas stations 89.


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post #77 of 81 (permalink) Old 11-13-2012, 06:28 PM
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Re: Do you use 87 or 89 octane?

I'm in Canada we are charged by the litre, which is 1/4 of a gallon (give or take) We pay more for fuel on this side of the border. Its been floating around $1.30/litre for 89.

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post #78 of 81 (permalink) Old 12-22-2012, 09:32 PM
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Re: Do you use 87 or 89 octane?

I use 87 octane and also only top tier fuels. (Chevron, Mobil etc..) It does the job just fine. I reserve 89 and up for my '07 vette.
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post #79 of 81 (permalink) Old 12-23-2012, 03:29 AM
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Re: Do you use 87 or 89 octane?

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Originally Posted by MALLORY011 View Post
I use 87 octane and also only top tier fuels. (Chevron, Mobil etc..) It does the job just fine. I reserve 89 and up for my '07 vette.
It's your choice on what you use but the engine you have will make a difference as well. Do you have the I4 or the V6? The V6 performs noticeably different on 87 and 89, the I4 not as much.

I see this is your first post. If you have a mind to, head on over to the New Member Intro area and, well, introduce yourself. We love pics so don't be camera shy...


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post #80 of 81 (permalink) Old 12-24-2012, 08:47 AM
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Re: Do you use 87 or 89 octane?

I use 87 in my 4cyl. I tried 89 for a few weeks and noticed no difference at all.
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