1.5 Turbo - Regular or Premium? - TerrainForum.net: GMC Terrain Forum
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post #1 of 17 (permalink) Old 01-08-2018, 05:52 PM Thread Starter
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1.5 Turbo - Regular or Premium?

Ah the question as old as time...what fuel to use. I know there is more of a robust discussion with the 2.0 turbo, but what about the 1.5 turbo? In my prior Equinox (2.4l), I noticed an appreciable difference when using premium, especially in the hot summer months here in Texas.

Realize the specs for the 1.5 turbo call for 87, but do you think 93 helps at all? I fill up at Costco, so the premium cost is not much more than regular at other stations.

Just curious what others think and have experienced.
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post #2 of 17 (permalink) Old 01-08-2018, 07:31 PM
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Ah the question as old as time...what fuel to use. I know there is more of a robust discussion with the 2.0 turbo, but what about the 1.5 turbo? In my prior Equinox (2.4l), I noticed an appreciable difference when using premium, especially in the hot summer months here in Texas.

Realize the specs for the 1.5 turbo call for 87, but do you think 93 helps at all? I fill up at Costco, so the premium cost is not much more than regular at other stations.


Just curious what others think and have experienced.

Hello and welcome!

First, owners manual states you can use 87 octane. This is also discussed in the 2.0L threads if you read through it becasue others have brought up the same question reagarding the 1.5L turbo engine. The 2.0L says you can use 87, but recommends premium fuel.

There are already a couple of threads here covering this conversation uder the 2.0L topic if you read through.. Best thing to do is. . search this way. It will give you more easily accessed and numerous hits and more !

1.) open up another tab.
2.) google Equinoxforum followed by the topic you are looking for - 2018 equinox premium gas.

And - - -- you will see Lots' Of Hits - --

https://www.google.com/search?q=equi...nt=firefox-b-1

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SOLD - - 2015 Equinox LTZ 3.6L FWD Champagne Silver Metallic *Build Date 1-08-2015 *

SOLD with *38,865 miles 8-15-2019.

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post #3 of 17 (permalink) Old 01-08-2018, 09:12 PM
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I think he is trying to figure out if using premium in the 1.5L will provide any benefits. While I haven't tried it, I would guess there would be zero benefit. Premium fuel is never even mentioned when specs are shown on the 1.5L, and since there is no more BTUs in premium than regular, the only benefit would be a cleaner engine from more detergents, but no more power or gas mileage. IMHO !

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post #4 of 17 (permalink) Old 01-08-2018, 09:39 PM
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I think he is trying to figure out if using premium in the 1.5L will provide any benefits. While I haven't tried it, I would guess there would be zero benefit. Premium fuel is never even mentioned when specs are shown on the 1.5L, and since there is no more BTUs in premium than regular, the only benefit would be a cleaner engine from more detergents, but no more power or gas mileage. IMHO !

If you buy top tier gasoline, I doubt there are even any additional detergent or cleaner running with Premium fuel.

Exon, Mobil, Chevron, and even Kwik Trip all tout the same cleaning ability with al octane levels. Tier 1 indicates such as well.

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post #5 of 17 (permalink) Old 01-09-2018, 11:47 AM
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On my 1.5 I've only used 87, from Shell, Esso, or Petro Canada. I don't think there are any benefits to running anything higher in the 1.5. As noted the other threads are a lot of back and forth on the 2.0 .. while you can in a pinch use 87, GM recommends higher and I really think we are going to see problems in a couple years when people start complaining about engine issues with the 2.0 and find out its because they cheaped out on fuel.

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post #6 of 17 (permalink) Old 01-09-2018, 02:34 PM Thread Starter
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Thanks everyone. I grew up in the 80s and remember some of our neighbors with their turbo K-cars (horrible comparison I know), but I seem to recall those really benefited from the higher octane, irrespective of what the owners manual said. This is my first turbo car, so just wanted to check in on the issue.

I think I'll run 87...and maybe the higher stuff in the middle of our brutal Texas summers.
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post #7 of 17 (permalink) Old 01-09-2018, 03:26 PM
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Richardson E'Nox---Off the wall question: Did you buy your 'Nox from Reliable? I drove to them from Copperas Cove in '12 to buy a Camaro; they were the only dealer in the state that had the color and options we wanted.
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post #8 of 17 (permalink) Old 01-10-2018, 05:26 PM Thread Starter
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I did! They are a really cool dealer (plus I live in Richardson so they are local to me). I have bought three Equinoxes from them and it's always a nice experience.
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post #9 of 17 (permalink) Old 01-10-2018, 06:54 PM
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I was pleased with the experience with them. I essentially purchased the car over the phone and gave them a credit card deposit of $100 for them to hold the car from a Thursday to Saturday when we could get up there. They had our Camaro sitting on the showroom floor waiting for us--we got there before they opened and the let us inside to wait until our salesman arrived. If it weren't for the drive, I'd deal with them for every vehicle transaction!

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post #10 of 17 (permalink) Old 01-10-2018, 07:12 PM
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After having several turbo engines, I have found they work the best with the premium gas. The one Turbo that I did not burn premium ended up with a burned out catalytic converter prematurely .

I believe there is other aspects to the use of premium, like the fuel injectors.

As far as gas mileage goes, I did get just a few more miles per gallon using premium.

I would burn the premium fuel if I where you.

Just my two cents worth.
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