Preferred fuel for the 2LTZ Turbo! - Chevy Malibu Forum: Chevrolet Malibu Forums
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post #1 of 56 (permalink) Old 01-19-2013, 07:14 AM Thread Starter
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Preferred fuel for the 2LTZ Turbo!

For everyone with the 2013 Malibu 2LTZ what kind of fuel are you filling up with? I started off with regular 87 Octane the first three fill ups and since then I have experimented with midgrade 89 Octane where I did notice the Bu being a bit more smooth overall on changing gears when getting up to speed. To fully take advantage of the car I know they recommend to use premium 91 or 93 Octane which I'd like to try next. What are your thoughts and/or recommendations on this?

I'm currently waiting for my BP $100 gas card to come in so I can start trying the premium stuff...........:-) I gotta ease myself into going for the good stuff..........lmao

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post #2 of 56 (permalink) Old 01-19-2013, 07:19 AM
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Re: Preferred fuel for the 2LTZ Turbo!

Here is how to figure it out using math and not emotion.

Fill up with 87 for several tanks and drive at least one trip of several hundred miles once at least one tank of 87 has been burned and refilled.

Do the same for 89 and then again for either 91 or 93.

Keep track of the mileage and the fuel cost, then determine how much it costs per mile to determine the costs for each fuel. The next thing is to use that data to decide which cost you want to pay.

On my Gen7 3.6L V6 I discovered that 87 performs worse and gets less mileage, 89 performs best, and 91/93 doesn't perform any better or get better mileage but just costs more. I use 89 always.


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post #3 of 56 (permalink) Old 01-19-2013, 09:59 AM Thread Starter
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Re: Preferred fuel for the 2LTZ Turbo!

Duly noted on the suggestions. As far as the sig I've just been holding onto it for the memory but I'll change it soon............:-)

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post #4 of 56 (permalink) Old 01-19-2013, 10:46 AM
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Re: Preferred fuel for the 2LTZ Turbo!

I run 91 or better but I'm tuned. Just received a tcm tune and the car shifts so much better.

I will soon receive a select tune. when my cruise button is on, I will have a mild tune 270 hp and 280 tq (easier on the drive train)and when its off I'll be pushing 300hp and 330 TQ of course all this is at my own risk and I'll still run at least 91.

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post #5 of 56 (permalink) Old 01-19-2013, 04:00 PM
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Re: Preferred fuel for the 2LTZ Turbo!

Car is more responsive and packs a litte more power too when using 91-93 octane. According to the internet searches i've made, you gain 20 more hp and 1 more mpg when using premium.

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post #6 of 56 (permalink) Old 01-20-2013, 09:15 AM Thread Starter
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Re: Preferred fuel for the 2LTZ Turbo!

To Mzodarg, you got a lot of tuning going on there my friend........:-) I can see why you go with the premium stuff.

Mongoose, so are you officially using premium gas yourself or just quoting the factuals?........:-)

I'm going to give the 91-93 octane a try myself and compare it to what I've gathered from my experience using 89 midgrade and decide from there what to go with. I don't think I'll be going back to 87 octane unless gas prices just explode to ridiculous prices.

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post #7 of 56 (permalink) Old 01-20-2013, 02:41 PM
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Re: Preferred fuel for the 2LTZ Turbo!

Quote:
Originally Posted by CoolandClever1 View Post
To Mzodarg, you got a lot of tuning going on there my friend........:-) I can see why you go with the premium stuff.

Mongoose, so are you officially using premium gas yourself or just quoting the factuals?........:-)

I'm going to give the 91-93 octane a try myself and compare it to what I've gathered from my experience using 89 midgrade and decide from there what to go with. I don't think I'll be going back to 87 octane unless gas prices just explode to ridiculous prices.
Currently using Shell 93 and can definately tell the difference from the mid grade 89 the dealer put in.

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post #8 of 56 (permalink) Old 02-06-2013, 05:39 PM
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Re: Preferred fuel for the 2LTZ Turbo!

What octane does Chevy recommend for the turbo?
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post #9 of 56 (permalink) Old 02-06-2013, 05:53 PM
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Re: Preferred fuel for the 2LTZ Turbo!

It recommends 91+ octane. Using less decreases the horsepower and torque by 10-20 from the advertised ratings and costs 1-2 mpg.

I don't understand why anyone would pony up the money for the performance motor and then be picky about fuel type.


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post #10 of 56 (permalink) Old 02-06-2013, 06:45 PM
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Re: Preferred fuel for the 2LTZ Turbo!

Does the 2ltz package have nitrogen in the tires?
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