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Old 08-21-2014, 07:24 PM
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What fuel do you use?

I have a 2014 jeep grand cherokee with a pentastar v6, I've been currently putting 89 (plus). Question is...am I wasting money?
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Old 08-21-2014, 07:28 PM
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Re: What fuel do you use?

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Originally Posted by WV0116 View Post
I have a 2014 jeep grand cherokee with a pentastar v6, I've been currently putting 89 (plus). Question is...am I wasting money?

Personally, I think you are. I use 87 in mine and it runs great. If you check your owner's manual I believe 87 is what they actually recommend for the 3.6L engine.
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Old 08-21-2014, 07:35 PM
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Re: What fuel do you use?

Ok thanks I'm going to start using 87 again..I just got it about a month ago..when I first got it I was using 87 but was told 89 or better makes it run better so I've been using it since..
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Old 08-21-2014, 08:38 PM
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Re: What fuel do you use?

Northern Va gas prices are ridiculous and avg $3.65 for 89 in my area, so I use 87. Still costs $75 per fill up, twice a week. I fill up the Hemi and miles to empty say 310 miles.
I love the V8 though.
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Old 08-21-2014, 08:49 PM
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Re: What fuel do you use?

I get 372-435 miles (600-700km) a tank out of my Hemi depending on how much highway driving I do. I fill up at Costco @ 1.21/L. I use mainly regular 87 gas that may contain 10% ethanol. Vehicle is usually run at 80km/hr plus most of the time. 8 speed is great.


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Old 08-21-2014, 08:53 PM
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Re: What fuel do you use?

I've been told by numerous people to use the gas your vehicle calls for. My last car an Acura called for premium so that's what she got. My 2014 Hemi calls for regular. The computer will adjust itself for the fuel so there is no performance benefit. You just want quality clean fuel.


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Old 08-22-2014, 06:43 AM
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Re: What fuel do you use?

The 3.6L only needs 87 octane, anything more is a waste of money.

Also, gas is gas...so buy it at the cheapest price you can find from a high volume station.
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Old 08-22-2014, 07:00 AM
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Re: What fuel do you use?

I use whatever the manufacturer considers recommended. For the Hemi that's 89. While the computers can adjust for 87, they are adjusting from optimum setting.

If I had the V6 I would use 87.

With today's gas mixtures, what GCLimited said is important, go to a high volume station. Gas that sits for long periods loses something.

I was curious when Chevy was running all the Volt commercials with the idiot who said she gassed up so little she couldn't remember where the filler was located. According to Chevy, the Volt stirs/mixes the gas periodically, and if you go too long without getting gas it will run on gas until you get to where you need to add some.


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Old 08-24-2014, 07:21 AM
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Re: What fuel do you use?

Since you got the V6, use the 87. I used to put premium in my V6 too and when I switched over to regular, I notice that I have better MPG but 1-3 on the EVIC without changing my driving habit.
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Old 08-24-2014, 04:31 PM
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Re: What fuel do you use?

I figure the engineers are smarter than I am so I go with their recommendations. My Hemi gets the mid grade (89) and up to 21 mpg on the highway. When I first bought it I used regular and then did a mileage test. Got better mileage and performance with the recommended 89. Just my $.02 worth.
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Old 08-25-2014, 12:33 PM
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Re: What fuel do you use?

I use 89 on my hemi and alternate to 91 every other fill up or two. I'll just keep that cycle. i have noticed i get a bit more mpg out of 91.
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Old 08-25-2014, 01:10 PM
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Re: What fuel do you use?

Quote:
Originally Posted by WV0116 View Post
I have a 2014 jeep grand cherokee with a pentastar v6, I've been currently putting 89 (plus). Question is...am I wasting money?
It depends on whether or not you have some other use for the money.
Read The Fine Manual.
It specifies what your vehicle has been designed for.
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