Isuzu MU-X vs Chevrolet Silverado

What's the difference?

The MU-X has plenty of appeal as a daily driver – dependable and it’s a proven 4WD wagon.

Does the 2.2-litre engine add anything substantial to the mix?

Well, it's better than the 1.9-litre, that's for sure, and there's a lot to like about this MU-X in terms of its off-road capability, driver-assist tech, standard features and all-round driveability. And, while the LS-T lacks the top-shelf polish of the X-Terrain, it’s still an appealing potential purchase.

But the 3.0-litre option is better because while the 2.2L is very effective off-road and general day-to-day driving, it lacks grunt and has to work that much harder and is that much noisier under load than the 3.0-litre in most driving scenarios, including 4WDing.

With its unique V8 soundtrack, all-terrain capabilities and sumptuous comfort, the ZR2 is a quintessential American muscle truck that's as capable of carting crews and accessing rugged worksites during the week as it is towing boats, horse-floats and caravans or getting muddy on weekends. For either work or play, there's a lot to like here.

In terms of appearance, the MU-X remains largely unchanged from the most recent iteration. And that’s a good thing. It’s blocky enough to be recognisable but sleek enough to remain inoffensive. Worth noting the door handles, window trims, front fender accents, roof rails, and side steps on the LS-T are gloss black.

Inside, nothing much has changed (other than a newly-introduced idle start/stop button) and, as such, the MU-X retains a low-key familiarity that makes it a comfortable space. Generally, design-wise, the MU-X more than holds its own against the likes of the Toyota LandCruiser Prado and Ford Everest.

The Silverado’s extensive remanufacturing to RHD, performed on a purpose-built production line in Melbourne, meets OEM standards of fit and finish.

As the off-road focused 1500 model, the ZR2 has hardware and detailing consistent with its rugged bush-bashing persona, highlighted by aggressively treaded mud-terrain tyres and unique raised suspension with high performance dampers.

Other ZR2 features include a raised bonnet with ZR2 applique, ‘off-road cut’ front bumper, bash plates, black grille with ‘Flow Tie’ (flow-through) bow-tie motif, ‘Performance Red’ chassis-mounted front recovery hooks, concealed dual-outlet exhaust, black fender flares/door handles/bumpers/window surrounds and chrome ZR2 badges.

It has a tough and purposeful look with bluff-fronted styling and an imposing stance. 

An expansive length of almost 6.0 metres (5931mm) and a 14.4-metre turning circle highlight formidable (and at times impractical) dimensions for urban life.

The cabin is spacious and airy with a tasteful blend of contrasting tones and textures combined with many soft-touch surfaces, yellow stitching along seams and splashes of chrome and satin chrome creating a plush look and feel.

The interior has a familiar and practical feel about it and the cabin is an easy space in which to become comfortable. Controls are easy to locate and operate and charging options are numerous – a mix of USB-A, USB-C (front and second row) and 12V.

Storage places include recesses for the bits and pieces from your pockets, a deep-ish centre console, as well as dual cupholders up front, cupholders in the rear fold-down centre armrest and bottle holders in the doors. There are also cupholders either side of the third row.

The MU-X has physical-button options to activate some functions (including to switch on the audio system, to adjust volume and access sat nav).

Seats are comfortable and supportive through all three rows – yes, even the third row is roomy enough to prevent whining from whoever is back there.

My camera guru/photographer/sergeant-at-arms, Glen Sullivan, reminded me that the third-row seats don’t have ISOFIX or top-tether points for child seats. Thanks, mate.

The cargo area is 311 litres with all three rows in use, 1119L with the third row flat and 2138L with the second and third rows stowed away.

The rear cargo area has a cargo cover, tie-down points, a 12V power outlet, a storage space under the rear cargo area floor and a space for tools inside the driver’s side rear cargo wall. The MU-X’s full-size spare (bravo!) is attached to its undercarriage.

The ZR2’s hefty 2587kg kerb weight and 3300kg GVM results in a 713kg payload, which is modest given a seated crew of five big tradies could use up about two-thirds of that payload capacity before loading any of their gear.

It can also legally tow up to 3500kg of braked trailer on a 50mm ball and up to 4200kg on a 70mm ball. The latter figure is 300kg less than the LTZ due to the specialised off-road suspension.

However, given the ZR2’s 6851kg GCM rating (or how much it can legally carry and tow at the same time), you would be left with a mere 64kg of vehicle payload if you wanted to tow the maximum 4200kg.

That’s barely enough for a driver - and a light one at that. Fact is, few if any owners in real-world use would need to tow 4200kg, but it’s important to be across these legal limits if you’re planning to.

The load tub is protected internally by a spray-on liner and offers almost 1.8 cubic metres of load volume. Its load floor is 1776mm long, 1813mm wide and sits 569mm deep, with 1286mm between the rear-wheel housings. More than wide enough for hauling Aussie or Euro pallets.

There are also 12 load-anchorage points, power assistance for lowering the tailgate and a tub camera to keep an eye on loads when driving. The rear bumper provides surefooted tub access using either the centre step or concave side-steps.

All occupants enjoy luxurious space, particularly rear passengers thanks to easy entry created by the wide-opening doors, a flat floor with no transmission hump for the centre passenger to straddle and palatial head and legroom even for tall people. Combined with ample shoulder room, a full crew can travel in enviable comfort.

Cabin storage for the driver and front passenger includes two bottle holders and a bin in each door. There’s also a large glove box and the centre console has an open tray and two USB ports up front, two bottle holders in the centre and a big box at the back topped by a padded lid that provides comfy elbow support.

Rear passengers get a bottle holder and bin in each door, plus more USB ports and two more pairs of bottle holders in the rear of the centre console and in the bench seat’s fold-down centre armrest.

There’s also storage pockets on both front seat backrests and handy compartments for small items are cleverly concealed within the rear seat’s upper-backrest cushions. Its 60/40-split base cushions can also swing up and be stored vertically if more internal load space is required, or to access ample under-seat storage.

Our 1500 ZR2 test vehicle, like its LTZ Premium sibling, comes standard with GM’s thumping 6.2-litre petrol V8 paired with a 10-speed automatic and multi-mode 4WD transmission for a list price of $144,900.

Our example is also fitted with several items from the GMSV genuine accessory range including the tri-fold tonneau cover, side rocker protectors (aka rock rails) and matching removable side-steps. It’s also finished in 'Riptide Blue Metallic', which like the accessories is available at extra cost.

The ZR2’s standard equipment includes 18-inch gloss black alloy wheels with chunky 275/75 R18 Goodyear Wrangler Mud-Terrain tyres and a full-size alloy spare, LED headlights/DRLs/tail-lights, load tub camera, spray-on tub-liner with ZR2 logo, power tailgate, 4500kg towing kit including towbar, 12-pin harness and electric trailer-brake controller, 360-degree camera with up to 14 views and lots more (see Design).

Climb aboard the sumptuous interior with its keyless opening/start and you’re treated to a heated leather-wrapped steering wheel with power tilt/reach adjustment and multiple remote controls, leather-appointed and heated/cooled driver and front passenger seats with 10-way power adjustment and memory settings, heated rear seats, power sliding rear window, dual-zone climate control, front and rear USB ports and lots more.

The high-feature dash includes a colour 12.3-inch configurable driver’s instrument display and 13.4-inch multimedia touchscreen that controls, among other things, the Bose premium sound and wireless Apple CarPlay/Android Auto connectivity. The driver also has a choice of adaptive and non-adaptive cruise control plus there's a head-up display, switchable rear-view mirror camera function, tyre pressure monitoring and lots more, including the recent addition of standard front parking sensors on the ZR2.

Owners who need to tow will appreciate the reversing camera with hitch guidance and view, in-vehicle trailering app with different trailer profiles, trailer theft alert, automated trailer lighting test and a GCM alert.

This MU-X has a 2.2-litre, four-cylinder, turbo-diesel engine, producing 120kW at 3600rpm and 400Nm between 1600-2400rpm and it’s matched to an eight-speed automatic transmission.

Worth noting the 3.0L MU-X has a six-speed auto and produces 140kW (at 3600rpm) and 450Nm (1600-2600rpm) while the outgoing 1.9L MU-X has a six-speed auto and produces 110kW (3600rpm) and 350Nm (1800-2600rpm).

While the 3.0-litre has always been unstressed in most driving scenarios – even low-range 4WDing – the 2.2-litre feels underpowered. More about that in the ‘Driving’ section below.

The MU-X has a part-time 4WD system which includes a dual-range transfer case (with high- and low-range 4WD) and a rear diff-lock. The driver is able to shift from 2H (two-wheel drive, high-range) to 4H (4WD high-range) while on the move up to speeds of 100km/h. The diff-lock may only be engaged when the vehicle is in 4L (4WD low-range).

The MU-X also has a switchable terrain mode system which tweaks the engine, transmission and traction control to suit the driving conditions. 'Rough Terrain' mode, like a steroids-enhanced off-road traction control, is king of these modes when you’re off the bitumin.

Like the LTZ, the ZR2 is powered by a 6.2-litre petrol V8 producing 313kW of power at 5600rpm and 624Nm of torque at 4100rpm. It features cylinder deactivation to optimise fuel economy when full power isn't required.

This is paired with a refined 10-speed torque converter automatic, armed with an auxiliary external oil cooler ideal for heavy towing duties and off-road slogging. It also offers sequential manual shifting using steering wheel-mounted paddles and there are numerous selectable drive modes.

Its dual-range transfer case with push-button control offers the choice of '2WD High', '4WD High', '4WD Low' and '4WD Auto', with the latter being a full-time torque-on-demand system. It’s also equipped with driver-selectable front and rear locking differentials for optimum traction in the rough stuff.

Official combined cycle (urban/extra-urban) fuel consumption for this MU-X is 6.7L/100km. The 1.9L MU-X offers 7.4L/100km while the 3.0L offers 7.6L/100km.

Actual fuel consumption on this test was 8.7L/100km.

The MU-X has an 80-litre fuel tank, so, going by that on-test fuel consumption figure, you should be able to get a driving range of about 920km. But remember, your fuel consumption may be completely different to mine because chances are you'll have friends, family pets, sporting equipment, camping gear, the whole kit and caboodle on board. I've only been carrying vehicle recovery gear, MaxTrax, and a first-aid kit, so I haven't had a huge amount of weight on board.

GMSV claims official combined cycle (urban/extra-urban) fuel consumption of 12.7L/100km and the dash display was showing 15.3 when we stopped to refuel at the completion of our 397km test, which included our usual mix of suburban, city and highway driving of which about half was hauling a variety of payloads.

This compares to our own figure, calculated from fuel bowser and tripmeter readings, which was higher again at 16.8L/100km. That exceeds the usual 2.0-3.0L/100km discrepancy between official and real-world consumption but is still acceptable for a 2.5-tonne pick-up powered by a big petrol V8 in urban use.

So, based on our real-world consumption figure, you could expect a driving range of around 540km from its relatively small 91-litre tank.

Before we launch into the off-roading section of this test, it’s worth noting the MU-X has always been decent on-road; composed, reasonably refined (for a 4WD wagon, anyway) and comfortable. And thankfully, with the 2.2-litre engine, not all of those characteristics have been thrown out the window.

It is quite noisy, especially under pressure when you have to do some heavy acceleration or when you have a bit of gear on board. When it has to work that bit harder than it usually does, it can become quite noisy. Admittedly, the 3.0-litre MU-X is also quite gruff, but there's an edge to the roughness in the 2.2-litre that is very noticeable on road.

This MU-X is quite sluggish off the mark, exhibiting a disconcerting lag under heavy throttle from a standing-start. And it’s far from the most dynamic vehicle to drive. But it has a tractability about it that manages to mostly negate these flaws.

Otherwise, the new eight-speed auto deserves credit as it’s slick and smooth in application and feels right at home in this wagon.

Now to off-roading. The MU-X is still very capable. In fact, even with the 2.2-litre engine, it remains one of the better-performing 4WD wagons straight out of the dealership, in terms of pure off-road capability.

The 3.0-litre MU-X is not the torquiest in this segment, but it offers ample pulling power available across a wide rev range – count on peak torque between 1600rpm and 2400rpm – and it delivers that pulling power in an even-handed fashion. The 2.2-litre MU-X has to work harder than its stablemate, and it’s noisier and harsher.

However, those characteristics don’t take away from how effective this MU-X is because it offers impressive off-road performance. It still has a decent amount of low- and mid-range torque, which makes dirt-road cruising and low-speed 4WDing easy.

The MU-X has part-time 4WD with high- and low-range 4WD gearing, a rear diff lock and overall it retains all of that off-road capability the 3.0-litre MU-X has been renowned for – so you don't lose any efficacy there.

The line-up’s off-road traction control system, which once was a bit patchy in its effectiveness, has gone through a couple of phases and it’s been recalibrated/tweaked over the years and it is much better now.

Of course, the MU-X also has Isuzu’s much-vaunted Rough Terrain mode (a form of early-acting off-road traction control which converts lost grip into torque for the wheels with grip), and it is smooth and effective, giving the driver better overall control in challenging terrain.

Some of this MU-X’s listed off-road angles appear shallower than the 3.0-litre MU-X’s – approach: 23.9 (3.0L = 29.2), departure: 26.4 (3.0L = 26.4) and ramp-over: 19.6 (3.0L = 23.1) – but, even if that is the case, it has very similar driving characteristics in low-speed, low-range four-wheel driving to its 3.0-litre stablemate.

If you drive with control and consideration, you shouldn't have any trouble tackling light to moderate 4WDing in this MU-X. It could even, if push comes to shove, handle challenges that may be considered by some to be on the edge of hard-core 4WDing – for a showroom-standard 4WD wagon anyway.

Ground clearance is 235mm and wading depth is 800mm, so there’s an adequate amount of clearance to work.

The MU-X – with a turning circle of 11.6m and a kerb weight of 2130kg (3.0L = 2185kg) – feels quite nimble on bush tracks.

This wagon’s wheel travel – how far the axle can move up and down relative to the chassis – has more than an adequate amount of flex, stretching its tyres close, if not all the way, to the dirt.

A noticeable trade-off is its 20-inch wheel-and-tyre combination, which is best suited to sealed surfaces and so are far from ideal for dirt-track touring. There’s an easy remedy, though. Buy a set of decent all-terrain tyres on 17- or 18-inch rims to replace the showroom-standard 265/50R20 Highway-Terrain tyres. If you are using your MU-X, avoid dropping pressures too much because you’ll risk sidewall pinches and punctures on these low-profile road tyres.

In terms of packability: the 2.2L MU-X has a listed payload of 670kg, whereas the 3.0L version offers 615kg.

The 2.2L MU-X can legally tow 750kg (unbraked trailer) and 3500kg (braked), so theoretically you can tow the same load as a 3.0-litre MU-X. But, as mentioned, the 2.2-litre engine feels underpowered, even in general day-to-day driving, so with a load and/or towing that’s an added burden.

For reference, the 2.2L MU-X has a listed gross vehicle mass of 2800kg and gross combined mass of 5900kg.

The ZR2’s raised off-road suspension requires more of a climb aboard than the LTZ, but the low-slung removable side-steps fitted to our test vehicle certainly make boarding easier and are an accessory worth considering if most of your driving is on-road.

There are large handles on the truck’s A- and B-pillars to assist entry to the cabin where the driver is treated to multiple power adjustments of seat and steering wheel plus a large left footrest, which together provide a very comfortable driving position.

The ride and handling are outstanding, as the ZR2’s suspension combined with the additional cushioning of its baggy all-terrain tyres is commendably supple over bumps, yet it's surprisingly responsive to steering input without the ponderous feeling expected in a vehicle of this size and weight.

This response is optimised when the ‘Sport’ mode is selected as it sharpens steering, brake pedal feel and suspension tuning for a more engaging drive. It also activates the louder and freer-flowing exhaust setting and modifies the auto’s shift calibration, which allows the V8 to shine with a guttural roar under full throttle that is not only an aural delight but can quickly reach triple-digit speeds with remarkable ease.

By contrast, it can also deliver relaxed and fuel-efficient highway travel thanks to the V8’s auto cylinder deactivation and less than 1500rpm being required to maintain a leisurely 110km/h. Engine, tyre and wind noise are negligible at these speeds.

To test its payload rating we forklifted 475kg into the load tub which combined with our crew of two equalled a total payload of 655kg that was within 60kg of its legal limit.

The rear leaf-springs only compressed abut 35mm under this loading, which left more than enough bump-stop clearance to ensure there was no bottoming out on our test route. The ZR2 performed so effortlessly with this payload it was easy to forget we even had one.

Our only criticism of the driving experience was the tri-fold tonneau cover. When hauling loads, this accessory is designed to fold forward into a flat bundle that leans against the rear of the cabin with two adjustable struts to brace it in place (see photo).

This worked fine during suburban driving up to 80km/h but was not suited to higher speeds, as the increased air pressure made it flex enough to block the rear-view mirror's camera view. So, an alternative tonneau design would be preferable for those needing to do lots of highway travel with uncovered loads.

There are currently no ANCAP star ratings for full-size US pick-ups. However, Australia’s vehicle safety authority has acknowledged the growing popularity of these vehicles with its inaugural ‘Large Utilities ADAS Safety Comparison’ to provide local consumers with comparisons of Advanced Driver Assistance Systems (aka crash-avoidance technologies).

The Silverado 1500 range (February 2025-build onwards) earned the minimum bronze grading, with its score of 27 per cent being the lowest of all vehicles tested. By comparison, Ford’s F-150 earned the highest score with 81 per cent and premium platinum status.

Even so, the ZR2 has an extensive active safety menu including forward collision alert with low-speed AEB, lane-keeping, blind-spot monitoring (which expands to include trailers), rear cross-traffic alert, front/rear parking sensors, plus a 360-degree camera view (with up to 14 views) and more.

It also has six airbags including side-curtain protection for all outboard seating positions, plus ISOFIX child-seat anchorages on the two outer rear seating positions and three top-tethers.

The MU-X has a six-year/150,000km warranty and seven years of roadside assistance. Unlimited km in the warranty would be welcome.

Service intervals are scheduled for every 12 months or 15,000km, whichever occurs soonest.

Capped price servicing covers the first five scheduled services for MY24 and later vehicle models (up to 5 years/75,000km – whichever occurs first) – at a flat price of $469 for each service.

Isuzu Ute Australia has a nationwide network of more than 160 dealer sites.

Now comes standard with a class benchmark five years/unlimited km manufacturer warranty, plus five years of roadside assist.

Scheduled servicing is every 12 months/12,000km whichever occurs first, but there's no capped-price servicing. Expect a three year service bill of around $2000, which isn't outrageous for a vehicle of this type.

GMSV has an Australian network of 50-plus dealers across most states and territories and all dealerships can provide vehicle servicing.