2018 GMC Terrain Gas or Diesel: Which One Is Best? 

Diesel is that way to go in day to day driving. Low end torque and mpg is usually unmatched and they're overall durable engines. I love my Canyon with the 2.8 Duramax. So much torque and really smooth.

Andre - "I'm going to set the cruise control at 40 mph, since that is the speed limit here" , as he drives by a 45 mph speed limit sign haha.

I'd probably go with a diesel over the gasser.

If you do mostly highway driving, get the diesel. If you are mostly doing stop and go driving, then get the gas version.

Guess I don't understand where all the hate comes from in these comments the new GMCs are really nice looking and are really dependable like they always have been

Neat video, TFL. The new Terrain seems like a pretty solid vehicle in its class. Offering competition for the Edge, Santa Fe Sport, and the Nissan Murano. I cannot wait until I review one! From one car reviewer to another, keep it up!

Just got this car last week. I personally love it.

Nice review, Andre. Regarding the interior sound levels: The huge expanse of the sunroof, without its headliner cover in place, will always let in a bit more noise, even when the sunroof glass is closed. I have an ordinary sunroof in my car, and again, with the glass totally closed, at highway speeds when I reach up and employ the cover, the interior of the car gets a bit quieter. So your diesel version with the glass visible, at 60 db, might have come down a bit closer to the gasoline version of 58 db which doesn't even have a sunroof at all.

it's about time more diesel options are available. with a 577miles fuel tank range that's a whole lot. let's see if the other manufactures will follow suit. would love to see some long term test and side by side comparison test in its class. the part i like is the maintainance cost are simialr

Nice review as always. Not a fan of the push button gear selection though. Especially for the "L" gear selection.

Great video review. I test drove the 1.5 turbo gas and it was nice to drive. I purchased a used 2018 GMC 1.6TDI. Mileage is impressive with the diesel. I hope that the drivetrain holds up with preventative maintenance. Would have loved it if they offered the 6 spd manual that was available with the Chev Cruze that shares the platform alas manuals are a fading breed in NA. Thank you.

Thank's for the review... I'm getting the cdti next year... 👍👍👍

Interesting contrast between the two, Andre. Thanks.

I love your guys content!! Keep em comming, just curious though, how do you guys get a hold of all these new cars? Rentals?

Beautiful car 👍 where is this video made? Beautiful place 😀 Good review 👍

@tflcar, I would choose the Diesel Terrain because I like how it is small and possibly gets fabulous gas mileage!!!

Did GM collaborate with Fisher Price for the shifter design?

TFL, how about a tour or review of that camper?? I've never seen one like that before; I'm intrigued!

Just get the Denali or option the 2.0l gas motor. The diesel can be made fun with a tuner, but the Denali is a hoot as is. When tuned that 2.0l gas motor make like 350whp and as much torque. My tuned 1.4 in my Cruze makes what the 2.0l makes stock. It’s crazy how much can be squeezed out and stay under warranty.

After some looking around I picked up a 2018 Terrain SLE 1.6 Diesel. Getting great mileage and diesel is less than $1.00 per litre these days. Good cruising highway ride and roomy interior with great panoramic moonroof added to the sunroof. Looking forward to Okanagan Winter weather to test out the AWD capabilities of the Terrain!

Great videos tfl keep the Ike runs commin

Good job Andre, thanks.

I don't think I could ever get use to switches and buttons for the transmission selection. That may be a minor thing to pass on a model over but I think it would bug me forever.

Looks better than the Equinox and hopefully is more reliable? Not sure I would want a toggle switch gear selector either

This may sound like a dumb question, but is the diesel version possibly also a mild hybrid? There is a large orange wiring harness visible at 0:49 that isn't on the gas model. Safety orange is an industry standard for identifying high voltage wiring.

What is the start-stop feature? Somebody explain this to me so I can move on to the Toyota Highlander.

To disable auto stop, shift to, "L". then push the + on the shift handle button up through to the top gear. This will disable the auto stop until the next time that you start the car.

Good to see a better engine option finally, hopefully it doesn't melt the rings like the 700,000 before it.

You can disable the auto on off mode I have seen on the Cruze with same engine transmission by selecting low range shift and manually select 6 gear or Top 9th gear for whatever transmission you have and it will solve the auto off start stop from what I have seen. Anyone confirm that? Thank you.

What brand is the little camper pictured?

You can NOT disable the auto start and stop?? With my 2017 car it can at least be disabled. Every time that you turn the ignition on, but you can!

Nice..Andre you were on the Denver flight to Pittsburgh. Ohioplye cool. Hope you enjoyed the area.

at 4:35 he states the start/stop can't be disabled. that's true but you can over-ride it by keeping the air conditioner ON

So when outside temps reach -40 every winter, where I live, how does a little start stop diesel keep the inside of my windows clear and my frostbitten fingers and toes warm?

Turbo Coolant seal bad on the gas engine?

Nice! I hope the Blazer gets the 1.6 ecotec diesel I feel like it would be a good base model diesel the 2.8 Duramax would be good for higher trims. Also as for other motor options the current ones are lame I think for the 4 and 6 cylinder gas motors I think they should get the 2.7 turbo 4 and the 3.0 TT V6 from Cadillac. I also think the 4.2 tt v8 would be cool as well I'm sure it'll fit just fine with a couple of tweaks to the firewall it would be a good option for the RS considering the 3.6 is the only motor for that the 2.8 Duramax would be good for the RS trim as well 😉 I think the Blazer is fairly popular at this point it would make sense to have those engine options it probably would sell better with those.

Great vid!

This looks good! Good job GM

My complaint is that 1.6 diesel is just too small. Fuel economy isn't the only advantage of diesels, they can also be great work horses, but the tiny displacement on this one negates that benefit. It should've been at least a 2.0, but I suspect that would've been harder to get the EPA's stamp of approval. They're scrutinizing diesels very closely since the VW debacle.

I love the fuel mileage of my diesel VW. But it sucks when you travel around and have to look for the diesel pump. And then some gas stations don't even have diesel.

Will this be now sold in UK or Europe .... Now that it has a Diesel engine. I truly love American SUVs and cars it's a shame they don't have it here in uk ...

Do you think the diesel engine will warm up quick enough to heat the cabin on a cold Canadian winter morning?

Review the 2018 traverse

"cannot disable" start stop, a stomach churner despite the diesel sweet taste.

The Ecotech is sold under Opel here in Italy. Sounds slow, feels slow, but overall is adequate. Honestly, I would have put the 2.0L turbo diesel with 150hp and much more torque to be "fair".

With a $3500 cost increase over the gas, you will only see savings with the diesel after 10 years of typical ownership. (Based on today's gas & diesel prices and 12k miles per year)

Doesn't look bad. I don't think they are high up in the compact suv ratings though

I don't understand the body styling for this year's GMC Terrain. The tiny rear side windows are ridiculously small and simply highlight the blind spot there.

I'd like to see a head to head of the GMC Terrain diesel and the Mazda CX-5 diesel! (if Mazda ever really brings them in)

Was this filmed in Pennsylvania? Near Ohio Pyle park?

It's a gmc wait 2 years and it will drop 15k.

Well wait a couple years buy it, wait until warranty expires, straight pipe it and delete it (depending which state you stay in), and smile. That what exactly I would do. Besides if you want to tow more upgrade the brakes.

What happens when you jump start an auto startstop car and the alternator hasn't charged the battery yet, and the car shuts itself off? Then it can't turn back on...but I'm sure it only stops when the battery amps are high enough to start the car immediately again? Could someone clarify this for me?

I'd wager you could take that diesel model to a tuner and he could flash the eco for an even better mpg that makes the thing even cheaper to drive...

Looks a lot better than the Chevy version. Could have been a candidate for my next SUV, however, not being able to disable auto-stop/start is a deal breaker for me. That stupid feature needs to have a memory function as well to be able to disable it permanently!

Auto start/stop on a diesel?

Why are the Hali lights blinking on a new car?

At a 3500 dollar premium you would have to put roughly 350,000 miles on the diesel before you would break even at today's prices. You save roughly a thousand dollars on fuel per 100,000 miles driven with the diesel.

You know what GMC just bring back the envoy if you had named this the envoy your sales would go off the charts Edit: I looked for this car and got it and gave it back to the dealership and got an equinox 2018 I think that’s a great car

It would be the same gas mileage in a V6 (3.6) compared to that 1.5 or 2.0 in this vehicle. Is it just me, or does this look a bit like a Mazda/Hyundai?

Why do you think it is that GM doesn't let you disable the stop/start but other automakers do?

What about other smaller SUVs with diesel engines?

Give it a few years, the printed letters on the shifter buttons will be worn off in typical GM fashion.

Andre or any TFL person, What do you think of auto start/stop?

Engines are getting too small for long term durability. Really, how much fuel do you save going from a 1.5 to a 2.0 litre motor? Virtue signalling to the EPA. Do enjoy TFL's videos, keep up the good work!

If I could only choose these 2 engines, I would take the diesel with it’s remarkable mpg, even with AWD, and the acceleration is similar. But of the 3 powertrain options, I would take the 2.0L Turbo with AWD, with its it High horsepower.

If somebody wants to disable the stop-start feature they must first put the car into low gear and then pick the 10th gear.

I was hoping the diesel towing power would be better.... not going to pull much with those ratings...even with moving up to the 2.0

Just got a 2024 slt great investment

Im buying this when it hits the used market

The diesel does not have the auto stop and start, or at least the 2018 version I drove did not have it.

This is going to be a big winner for GM with twins offering a high mpg diesel in the compact field. Hybrids are good for city dwellers but are nothing special on open highways but diesels are made for the open road, and GM diesels are reliable plus efficient. GM knows how to make excellent diesel engines and this is just another straw in their hat.

Here in North Carolina, most diesel prices are several cents per gallon HIGHER than regular gas...and in many places, diesel is absent from pumps. I've owned two diesel cars in the past - and "never more, never more." I vote for GAS over diesel.

1.6 diesel? It is too small engine for this size of the car. There should be min 2.0 diesel engine

Start/Stop should be able to disabled on Diesels, as it's bad on diesel engine longevity

This is a really good looking suv. I think it's also very competitively priced. I would say, if you never plan on expeditions around the country, don't get diesel. Great car GM!

Well done video. As for the vehicle, I lost my interest in it as soon as I saw push button transmission selector. Give me a shifter or even a dial, but I can't stand those buttons.

The diesel sounds promising, but I'm going to wait and see what Mazda brings with the CX-5

In 50k miles, that's less then $500 in fuel savings. The diesel probably takes DEF too. The diesel is also a bigger engine, so probably takes more oil. My car has a 5 speed auto. For any kind of sporty use, or trying to accelerate into traffic from a stop is super uncomfortable. Couldn't imagine a 9 speed... Lately I've been manually shifting my auto... Like take off in 1st, then it will shift down and out of the power, just as I get back on the power and it wastes time and is very rough.... I think my next vehicle will be a manual because the auto transmission doesn't know what I'm planning to do or what is happening around me. Stop shifting!

Does the diesel have a dpf filter and require diesel DPF fluid?

@4:53 The Knob looks like its gonna fall off.........Can GM please put some quality and reliability into their products, for god sake~

I like the mileage of the diesel, but the start stop can't be disabled? no thank you! Nothing like a 95 degree summer day and the engine shuts down at a stop which also kills the a/c compressor. That is a total deal killer in my book. If you hate the pushbutton transmission selector get a Chevy Equinox it has a "normal" shift lever

Close the sunroof cover while you're testing decibels

Looked into this vehicle because I have a GMC envoy that has been super reliable (230K miles on it) but I ended up going with a Subaru outback which is bigger(surprisingly), cheaper, and has more safety features.

Do a cliffhanger or a gold mine hill video with the grand cherokee trailhawk please. Drop a like to this comment if you would like to see Grand cherokee trailhawk in action.

We in europe drive mostly diesel cars. Because gas is so expencive. About 1.20$ per liter. That's why we drive diesels. I Drive Alfa Romeo 2.4 JTD and I get around 33mpg in city. It's really good and powerfull engine and also reliable and which is most important it doesn't drink a lot of fuel. Before I drive the Alfa with gas 1.8 l engine and I get aprox 25 mpg in city and that's drinking alot for the price of gas

Wow. That suv gets better mileage than my Honda Civic

Andre, going by the computer is not real world. GM don't want you to turn off stop/start. They are going to make you have to buy a new starter.

GM nailed it with this terrain

45K for a Denali?? That 3 row crossover money. I can think of several otions I'd prefer for that amount. CX-9, and Sorento for starters.

Nice 👍

I can't help but laugh at his outfit. :D He looks like he's cleaning bowling alleys for minimum wage. :D

No manual trans

Testing sound levels at only 40mph? Of course it will be quiet

cool

Oh god, not that stupid-ass push button transmission. What's wrong with a lever?

After 5 years that $3,500 extra diesel would probably only add $500 to the resale value. No way you will save three grand at the pump in five years to justify that much of a premium. Trucks maintain that price premium when it comes time to resell, but a CUV only rated to tow 1,500 pounds. No way.

Mazda just killed the diesel engine. Sparkless petrol engine is VERY POWERFULL AND EFFICIENT. And it reduces emmission by quite a bit over diesel.

how come back in160,most cars got 35 mpg,.now,all that tech,& cant do it.

Is this the American equivalent to the Opel Mokka?