Isuzu MU-X vs Holden Trailblazer

What's the difference?

So, engine aside, not much new for the 2024 MU-X, but I can confidently say this: if you’re not towing big loads all of the time, then the 1.9-litre turbo-diesel won’t just save you cash at the dealership, but at the service station, too.

The Trailblazer is a solid all-rounder and deserves the consideration of those in the market for a decent seven-seater 4WD. It does everything well without ever really excelling at any one thing.

Is it fantastic? No. Is it a game-changer? No. Does it represent pretty good value for money in the grand scheme of things? Yep. 

The pick of the bunch for me is the LTZ – solid, off-road capable, and suburbs-friendly with just a hint of leather-appointed class. In the LTZ, you get everything worthwhile in the Trailblazer mob and if you’re a family man you won’t feel the need to fork out an extra $1000 for the Z71’s try-hard window dressing.

The Trailblazer is a mostly comfortable SUV wagon, stacked with features and is well worth your consideration if the Isuzu MU-X, Pajero Sport and Toyota Fortuner don’t float your boat.

If you like the look of the 2023 Isuzu MU-X, then boy have I got good news for you, because the changes to the 2024 model occur under the bonnet, and nowhere else, really. That means you get the same simple, boxy exterior design, which emphasises capability over fanciness.

Yes, the MU-X design is more dependable than daring, but I reckon it works, with the three-row SUV cutting a fairly handsome figure, even if it is yet to receive the design tweaks just rolled out on the updated Isuzu D-Max.

Inside, though, it definitely presents as a little utilitarian, with some plastics that feel like they could survive a nuclear blast, and the 7.0- and 9.0-inch central screens both feel a little underwhelming by modern standards.

It all feels very comfortable and hard-wearing though, which is probably every bit as important, given the MU-X’s target market.

The Trailblazer is a solid-looking wagon – all clean, tight lines from front to back – and overall it has a real squat and substantial presence. If we’re going to get all ‘fancy Dan’ with our hyperbole: chrome-accented daytime running headlights swoop back along the chunky body to slick LED tail-lights. If we’re sticking to basics: the Trailblazer looks good.

Inside, the tweaked interior has a tidy if rather basic feel to it – but that’s not a bad thing in a wagon that will have to cop dirt and dropped ice creams amid the general chaos of day-to-day life.

The leather-trim seats add a touch of class to otherwise family friendly dimensions and environment.

Practicality has always been a sizeable MU-X perk, regardless of the engine. 

That starts with seven seats, and a back row where actual full-size humans can spend time — and there are not many three-row SUVs you can say that about.

I’m 175cm tall and while I wouldn’t pick row three as my first choice, I’d happily sit back there for short hops.

The middle row, too, is pretty spacious, though it is lacking in a few creature comforts, with just the air-con vents (but no temp controls) and a couple of USB ports to keep you company.

And remember when I said the brand was promising the 1.9-litre engine wouldn’t cost much in terms of capability? Well, Isuzu says the braked towing capacity for models fitted with the smaller engine is 3000kg, while the payload figure increases — now up to 735kg — mostly because the new engine is about 70 kilos lighter. Models fitted with the 3.0-litre turbo-diesel are still rated to tow 3.5-tonne. 

The MU-X stretches 4850mm in length, 1870mm in width and 1815mm in height and it sits on a 2855mm wheelbase, which means while there’s plenty of cabin space it’s not too ridiculous to park.

You’ll find 311 litres of boot space with all three rows in place, growing to 1119 litres with the second row folded flat and 2138 litres with just the front two seats in action.

Every MU-X model will offer at least 800mm in wading depth and 230mm ground clearance, too.

Climbing in is easy enough with a sturdy "overhead assist handle" for all comers and goers.

All of the Trailblazer’s seats are mostly comfortable except they are quite flat and hard, which may prove a hindrance over longer trips. The driver’s seat is six-way electrically-adjustable and there is little in the way of lumbar support.

The second row will better suit two passengers than three for long-distance comfort but there is enough room all round – head, shoulders and legs – to avoid most complaints, for a little while anyway.

Third-row passengers will need to be children or those of a shorter stature to cope with the ‘back of the bus’ squeeze – and even then trips should be kept to shorter distances to avoid an in-car riot. It’s not a terrible place to be, in the third row of this thing, but it’s not ideal either – pretty much in keeping with the rear-row offerings of its rivals.

Back up the front again and the dash design is clear, user-friendly and easy to get used to with day-in, day-out use.

There is a fair bit of storage space in the cabin but some of it is awkward to access and actually use. The glove box is big enough to cope with one or two handfuls of bits and pieces. There is a sunglass holder up near the rear-view mirror.

Passengers in the back also get air vents and manual aircon control.

There are two cup holders in front of the small centre console housing the USB port which, when used, eats into that available space.

All doors have a moulded bottle bulge, which wouldn’t cop our CarsGuide water bottle without forceful encouragement.

The second-row passengers get a fold-down centre arm-rest/cup holder when there’s no one sitting in the middle. Passengers in the back also get air vents and manual aircon control.

With all seats up, if you pack to the roof, there is 235 litres of cargo space at the very rear; with the 50/50 split-folding third-row seats folded down, there is 878 litres; with the second-row (60/40 split-fold and tumble) and the third-row seats down, there is 1830 litres of cargo space. There is a retractable cargo blind stowed away under the floor at the rear.

With the second-row seats folded forward, it is easy enough to get into the third-row seats; no contortionist moves required.

There are two 12-volt outlets in the centre dash; one at the back of the centre console (for second-row passengers); and one in the rear cargo area.

Up top, the roof rails are rated to carry 100kg.

The Trailblazer is available in three spec levels, each with a market-competitive price: base-spec LT (from $47,990, excluding on-road costs), LTZ (which we tested; from $52,490) and the limited-edition Z71 (from $53,490).

But those prices soon start to climb when you add in accessories such as all-weather floor mats ($130 for a pair), boot lip protector ($80) and a rigid cargo barrier ($960). Our test vehicle had a Power Blue (prestige paint) colour on the exterior, at a cost of $550.

All models have the 2.8-litre turbo-diesel engine and six-speed automatic transmission. The 4WD system is a dual-range part-time shift-on-the-fly set-up.

The LT’s standard features include cloth seat covers, 17-inch alloy wheels, a seven-inch touchscreen to go with its Holden MyLink infotainment system, Apple Car Play and Android Auto, Bluetooth connectivity, front fog lamps, signature daytime running lights, side steps, limited slip diff, rear parking sensors and a rear-view camera.

The LTZ gets all of that (although its touchscreen is eight inches) and more: integrated satnav, blind spot alert, forward collision alert and heated front seats and leather-appointed seat trim. It has 18-inch alloy wheels.

The Z71 has all of that gear as well as a distinctive sports look, replete with black bonnet, black mirrors, black exterior door handles, Z71 leather-appointed trim and 18-inch black alloy wheels.

Let’s focus on the new engine option here, with the 1.9-litre turbo-diesel delivering 110kW and 350Nm. They don’t sound like massive numbers, but Isuzu makes the point that the torque delivery is wide, with maximum grunt available from 1800rpm to 2600rpm, and 300Nm available from 1550rpm to 3700rpm, meaning there’s power there when you need it.

The new engine pairs with a six-speed Aisin tramsission and delivers power to two or all four wheels.

The 2.8-litre turbo-diesel engine punches out 147kW at 3600rpm and its big-gun 500Nm at 2000rpm and is well-matched to a six-speed automatic transmission. This Trailblazer is, on paper, a very good tow vehicle with so much torque available and from down so low.

Its towing capacity is 3000kg (braked), but I’d prefer to see how it fared in a real-world tow test before I pass judgement.

Another perk of the smaller engine is a smaller fuel bill, with the 1.9-litre turbo-diesel promising to drink 7.4L/100km on the combined cycle - almost a litre less than the 3.0-litre 4x4 model, which is more like 8.3L/100km. 

Emissions drop, too, with the smaller engine rated at 196g/km of C02 combined, compared with 220g/km on for the 3.0-litre 4x4 model.

Impact on the hip pocket? Well, fewer trips to the service station for one. Isuzu says the 80-litre fuel tank should deliver almost 1100km of driving between refills.

Claimed fuel economy is 8.6L/100km (combined). We recorded 9.6L/100km fuel consumption after 200km of mixed driving, including about 30km of gravel tracks, and 10km of hard off-roading. As mentioned earlier, it has a 76-litre fuel tank.

First things first, you can absolutely tow with the smaller MU-X engine. In fact, we attached a load weighing close to its 3.0-tonne maximum and the Isuzu just hunkered down and got to work.

It must be said, though, it’s nowhere near as effortless as when you have the bigger 3.0-litre turbo-diesel engine up front, which dispatches heavy loads clinically and easily.

The smaller option has to try harder and rev higher, and while it’s easy enough on downhill runs or flats, it’s noticeably slower when heading up hill.

It does demand the question of how often you’ll be attaching close to its rated maximum on the towball, though. If it’s often, the bigger engine is definitely for you. But if it’s occasionally, or your tow loads are lighter, you can definitely make do with the 1.9-litre option.

On the road, the 1.9-litre engine’s power delivery is actually pretty well suited to the MU-X. It’s not fast, of course, but the width of the torque band helps deliver grunt when you need it (to a point) especially in the low-end, and I reckon the whole experience is a bit smoother and quieter than with the bigger engine, too.

You are missing some of that effortless grunt, of course, and you still can’t escape the usual diesel noise that permeates the cabin, but the lower fuel use for lower power feels like a fairly decent trade. 

It won’t be for everyone, and cross-country travellers and towers will no doubt go for the bigger unit, but for everyone else the 1.9-litre is a pretty sensible option.

The LTZ is 4887mm long (with a 2845mm wheelbase), 1902mm wide (excl mirrors), and 1846mm high. It has a kerb weight of 2203kg.

Its turning circle is 12m but it feels like more of a cumbersome beast when trying to manoeuvre in the bush or in the city, though not enough so for that characteristic to be any sort of deal-breaker.

The tilt-adjustable, electrically assisted steering lacks any reach-adjustment, which is annoying, but it can still be counted on to deliver a precise feel – light at low speeds, heavier at high speeds – when pushing the Trailblazer along at a fair clip on open roads or in and out of corners.

Acceleration seems livelier now; there is more off-the-mark oomph for take-offs and safe, smooth overtaking, even on long gradual climbs, than before. The torquey engine and six-speed auto – with its smooth changes and gear-holding when appropriate – make for a high-achieving combo.

Ride and handling seem better than in Colorado7 guise although the tweaked suspension – Aussie-tuned coil-spring front and coil-spring live-axle rear – and Bridgestone Dueler H/Ts tyres* may account for some of that. However, we did feel some body-roll while driving along back roads, unlike the last time we were in a Trailblazer LTZ. (*The Trailblazer has a full-sized 18-inch spare.)

The locally tuned suspension is, at times, a bit too firm; when we hit heavy bumps and deep potholes on rough gravel tracks several times, we were unsettled because the Trailblazer’s suspension bashed its way over and through.

NVH levels on open-road bitumen can still tend towards the rougher side of things with diesel engine clatter, tyre roar and wind rush clattering a tune on your ear drums.

We completed a series of emergency braking scenarios – on bitumen and dirt – and the Trailblazer’s disc brakes – 300mm at the front and 318mm at the rear – helped rip us into a controlled stop.

Off-road, we had a ball because the beefy Trailblazer seems a much better fit for gravel-track fast blasts and slow-going bush driving than it does for any jaunts in the stop-start city.

Our drive loop included a decent bit of four-wheel driving – coastal sand, bush tracks peppered with rocks of all shapes and sizes, and shallow mud in a dried-out dam. Drive modes can be switched via the centre console dial between 2H, 4H and 4L; high range modes are actually represented by an ‘up’ arrow on the dial; low range is a ‘down’ arrow. Bonus: the Trailblazer’s 500Nm of torque is readily available from way down low.

The Trailblazer has a limited slip diff, 218mm of ground clearance and a wading depth of 600mm, which was never tested as our usual creek crossings were so bone-dry they were more like puddles. Approach, departure and ramp-over angles are 28, 25, 22 respectively.

Its armoury of off-road tech – auto hill-start assist, hill-descent control and more – make it almost unstoppable, straight out of the showroom, for anything demanded of it on a light- to medium-difficulty adventure weekend.

Its 76-litre fuel tank, however, hinders any claim it has to off-road touring potential.

The Trailblazer has 3000kg towing capacity (braked); 750kg unbraked.

Note: Holden has persisted with a system which, when you open a door, the front windows automatically slide down a bit, an action aimed at reducing air pressure when you close the doors. It remains annoying but we still weren’t annoyed enough to actually bother to check the owner’s manual for a possible hack to switch it off.

The Trailblazer range has a five-star ANCAP rating. The LTZ has seven airbags, and electronic stability control (ABS, EBD etc), rear view camera, front park assist, rear parking sensors, forward collision alert, blind-spot alert, lane-departure warning, rear cross-traffic alert, a tyre-pressure monitoring system and trailer sway control.

The second row has three child restraint anchor points and one ISOFIX child restraint anchor point.

Every Isuzu MU-X model gets a six-year, 150,000km warranty, as well as five years of capped price servicing, and up two seven years of roadside assistant. 

The service are 12 months or 15,000km, and each service costs $449 per year, or a total $2245 over five years.

The Trailblazer comes with a three-year/100,000km warranty. Lifetime capped price servicing includes a free inspection at one month, then $299 (at nine months/15,000km), $399 (18 months/30,000km), $479 (27 months/45,000km), $479 (36 months/60,000km) and so on.

(At time of writing, the LT was being offered for $45,990 driveway with a seven-year/175,000 warranty.)

Potential problems might include cumulative driveline wear and tear from people towing heavy loads (horse floats, boats etc).