Isuzu D-Max vs Chevrolet Silverado

What's the difference?

There’s a lot to like about the regular D-Max in terms of standard features, driver-assist tech, and all-round driveability – it’s an impressive 4WD with plenty of appeal as a daily driver.

And the Blade is even better – but not by a lot.

Walkinshaw’s work on the Blade has bolstered that appeal with conversion work, engineering upgrades and fitment of accessories and all of those elements are the kind of sensible changes an experienced 4WDer would usually make to their own stock-standard vehicle via the aftermarket.

And that’s a crucial point with these type of factory-modded vehicles: some people prefer to do the research, sourcing, purchasing and even the fitment of mods and accessories themselves rather than buy a ready-made adventure machine.

However, there’s no denying the convenience of a factory-backed and -accessorised 4WD ute or wagon, and Isuzu and Walkinshaw have proven, in the same way that Nissan and Premcar have, that these kinds of collaborations can yield positive results.

Do you need a Blade? No, and an LS-U+ might better suit your lifestyle. But do you want a Blade? Many a D-Max fan would say “Yes!” without hesitation.

This is a serious truck with load-carrying and towing capabilities far beyond Australia’s ubiquitous Ranger/HiLux-sized one-tonne utes. However, those vehicles thrive in urban use due to their relatively compact dimensions so, in that context, this pick-up is simply too large to be a practical alternative. However, if you have more specialised work and recreational requirements, like GCMs as high as 12 tonnes with spacious comfort for a crew of five, this big American would be tough to top.

The Blade’s distinctive look builds on the D-Max’s most recent refresh treatment, in which the ute received new headlights, a bigger grille, redesigned wheels, and three-tier LED tail-lights.

In terms of dimensions, the Blade is 5308mm long (with a 3125mm wheelbase), 1810mm high and 1910mm wide (excluding wing mirrors).

In comparison, the LS-U+ is 5285mm long (with a 3125mm wheelbase), 1790mm high and 1870mm wide (excluding wing mirrors).

So, the Blade is longer, taller, wider (with wider wheels and wheel tracks, and 23mm-wider wheel-arch flares), beefier and more imposing than its standard stablemates.

Also, at a listed kerb weight of 2204kg, this ute is 89kg heavier than the LS-U+.

Exterior Blade extras (all of these are satin black) include front grille with ‘ISUZU’ lettering (and integrated, tinted 112-watt lightbar), front bumper cladding, fender flares with integrated air curtains, ‘BLADE’ lettering across the tailgate, tailgate badging, decals on the front bar, bonnet, doors and tailgate, tubular sidesteps, and a one-piece extended sports bar with integrated stop lamp.

It also gets widened mud flaps, an individually numbered 'BLADE' identification plaque in engine bay, 'Basalt Black' tailgate and door handles and door mirrors.

Inside there are ‘BLADE’ embroidered head rests, 'BLADE’ embroidered floor mats, 'BLADE’ embossed scuff plates, and an individually numbered 'BLADE' identification plaque on the transmission selector surround.

Everything looks good, except...

This vehicle would be a whole lot more appealing without the cheesy katana-style stickers everywhere and the huge ‘BLADE’ emblazoned on its rear end. The ‘Blade’ mentions on the scuff plates and on the front-seats head-rests are about all the decoration it should have.

The decals are shaped to bring to mind the blades of samurai swords I guess, but they look more like ice hockey sticks to me – and they shouldn’t be there.

This ute would benefit from more of a subtle look – it’s chunkier-than-thou appearance speaks for itself, so there’s no need for garish tarting up of any sort.

MY24 brings a freshened front-end appearance with new fascia, headlights, body-coloured bumpers and grille garnish, black body highlights and more.

With a traditional ladder-frame truck chassis and sprawling 4036mm wheelbase, this behemoth measures almost 6.4 metres in length (6387mm) and more than 2.2 metres in width (2263mm).

It also stands more than 2.0 metres tall (2039mm) and has a vast 16.1-metre turning circle. So, multi-storey car parks, drive-thru takeaways etc are best avoided. And domestic driveways (if wide and long enough to accommodate it) may suffer under its weight over time.

It rides on 20-inch high-gloss black alloys with LT275/65 R20 Goodyear Wrangler all-terrain tyres and carries a full-size spare.

New Z71 off-road suspension includes skid plates and Rancho twin-tube dampers, offering 251mm of ground clearance and 28.5 degrees approach/19 degrees ramp breakover/23.6 degrees departure angles.

However, its 4x4 capabilities would be better suited to accessing rugged worksites, pulling a large caravan out of a boggy campground or towing a large boat trailer up a slimy boat ramp, than hardcore bush-bashing on narrow tracks.

The Silverado’s extensive remanufacturing to RHD, performed on a dedicated production line in Melbourne, exudes OEM standards of fit and finish. The dashboard module is particularly impressive, in providing a mirror image of the LHD original in appearance and function.

The leather-appointed cabin is a highlight, offering palatial space and comfort for all. It features a tasteful blend of contrasting materials and surface treatments, including silver-grey woodgrain inserts on the doors, dash and centre console plus exposed stitching along seams and subtle splashes of chrome.

The entry pathway to the rear seat is expansive, thanks to wide-opening doors and a flat floor with no transmission hump to straddle. There’s executive-lounge rear head and legroom, even for tall people, combined with enough shoulder room to ensure a crew of five can travel in comfort.

Isuzu could never be accused of ever sacrificing substance for style in the D-Max and that remains true in the Blade. 

Not a lot separates the LS-U+ and Blade in terms of functionality or comfort because they share essentially the same interior with only a few differences.

The interior here is at heart a workhorse’s cabin with no fancy-schmancy elements that might spoil this ute’s primary purpose: work … and a fair dose of play, of course.

The latest round of D-Max upgrades brought with it enhanced interior materials, a new 9.0-inch touchscreen multimedia system as well as upgraded functionality across all dash tech, and more charging spots for smart devices.

And the Blade treatment doesn’t add anything other than the aforementioned style tweaks to that – which is fine.

The cabin has a pleasantly familiar feel about it and it’s an easy space in which to swiftly become comfortable and to figure out where all controls are (on-screen and real switches, buttons and dials) and how to use them. 

The interior is adequately spacious with nicely supportive seats upfront and a reasonably comfortable bench-style pew for the three people at the rear. 

The Blade has leather-accented upholstery, but there are expanses of durable plastic surfaces to cope with real-life mess.

Charging options are numerous – a mix of USB-A, USB-C and 12V upfront, and USB-A for the second row – and storage places include recesses for your everyday carry gear, a suitably deep centre console, as well as dual cupholders upfront and cupholders in the fold-down armrest, and bottle holders in the doors.

Back-row passengers get USB ports, directional air-con vents and shallow under-seat storage.

The tub is 1570mm long (at floor level), 1530mm wide (1122mm between the wheel-arches) and 490mm deep. It is a double-walled tub, with an under-rail tub liner, two cargo tie-down points, and it has tailgate assist.

Tub options for D-Max owners include a tonneau or roller cover (which offers at least some degree of security from thieves, and protection from rain, mud, snow etc), or an Isuzu or aftermarket canopy, although a canopy impacts the versatility of the load space because once it’s an enclosed area it makes it more difficult to carry long, awkward and/or large loads in the tub.

With its towering 3762kg kerb weight, the 2500 HD offers a choice of ADR load ratings (NB1 or NB2) which must be specified by the customer at the time of ordering (at no extra cost) to ensure the correct certification for vehicle registration.

The NB1 category allows up to 4500kg GVM/733kg payload, which can be driven by car licence holders. NB2 allows up to 5148kg GVM/1386kg of payload, but requires a truck licence. Our test vehicle is certified for the lower NB1 rating.

The 2500 HD is rated to tow up to 3500kg of braked trailer with a 50mm ball and up to 4500kg with a 70mm ball. These trailer weights are well within its capabilities, given that its GCM rating (how much it can legally carry and tow at the same time) is an eye-popping 12474kg.

Yep, that’s more than 12 tonnes, which allows for trailers weighing more than 4500kg using heavy-duty connections like pintle hooks, goosenecks/fifth-wheel turntables installed and certified by specialist aftermarket suppliers.

The enormous load tub offers almost 2.0 cubic metres of cargo volume and has large external steps front and rear for easier access. The load floor is 2089mm long, 1814mm wide and 533mm deep, with 1317mm between the rear wheel-housings allowing Aussie or Euro pallets to be carried.

It’s protected by a tough spray-on liner, plus there are 12 load-anchorage points, LED lighting, power tailgate and a camera to keep an eye on loads when driving. Our test vehicle was also fitted with adjustable and removable load-dividers, which are part of the GMSV accessories range.

Cabin storage for driver and front passenger includes two bottle/cupholders and a large bin in each door plus a single glove box. The centre console has a large open tray up front, two bottle/cupholders in the centre and an Esky-sized box at the back with padded lid that doubles as a plush elbow rest.

Rear seat passengers get a bottle/cupholder and bin in each door plus two more bottle/cupholders in the rear of the centre console and another two in the fold-down centre armrest. There are also large storage pockets on both front seat backrests and compartments cleverly hidden behind hinged upper backrest cushions.

The 60/40 split rear seat base can swing up and be stored vertically if more internal load space is required. This also provides access to the under-seat storage accessory fitted to our test vehicle. You’d seriously struggle to run out of cabin storage!

Our test vehicle is available only with GM’s 6.6-litre 'Duramax' turbo-diesel V8, 10-speed automatic transmission and dual-range 4x4 system for a list price of $163,000.

Our example has optional 'Slate Grey' prestige paint ($1250) plus GMSV accessories including a powered roller tonneau cover ($3970) and rear under-seat storage ($455) which adds more than $5600 to the price. So, with on-road costs, it's drive-away is more than $170K.

MY24 upgrades include styling, performance, towing and safety enhancements. There’s also a redesigned interior, with its most notable feature being upsized dash screens comprising a 12.3-inch configurable driver’s info display (paired with a colour head-up display) and larger 13.4-inch multimedia touchscreen. 

There’s also a premium Bose sound system, Apple/Android connectivity and wireless phone-charging, plus USB ports front and rear, dual-zone climate control, heated leather-rimmed steering wheel (with four-way adjustment), a power sunroof and power sliding rear window.

Leather-appointed seating offers 10-way driver and front passenger power adjustment, heated/ventilated front seats, heated rear seats, rear privacy glass, a power tailgate, tubular side-steps, 360-degree camera (and up to 14 different camera views), full LED lighting including fog lamps and DRLs plus heaps more. It’s what you might call fully-loaded - even without a load.

The D-Max Blade has the D-Max line-up’s 3.0-litre four-cylinder turbo-diesel engine – producing 140kW at 3600rpm and 450Nm from 1600 to 2600rpm – and it’s matched to a six-speed auto. 

Just to be clear: the Blade does not have any power or torque advantages over the standard D-Max.

This engine and auto combination form part of a proven powertrain and while this ute is sluggish when accelerating and it’s not the most dynamic vehicle to drive, the D-Max has a real tractability about it that negates most other flaws. 

It has part-time 4WD, with high- and low-range. Driver-assist tech, such as rough terrain mode, has been tweaked with the aim of making Isuzu 4WDs perform off-road even better than before.

The 6.6-litre Duramax turbo-diesel V8, with driver-switchable exhaust brake, is tailored for heavy-hauling with an external engine oil cooler and functional bonnet scoop feeding fresh air to the engine’s intake system.

In the latest MY24 specification, it produces 350kW at 2800rpm and 1322Nm of torque at 1600rpm. That’s 18kW and 98Nm more than the previous model.

The refined 10-speed torque converter automatic with column-shifter is also fitted with an external oil cooler, while closer gear ratios and revised final-drive ratios for MY24 enhance all-round performance.

A dual-range transfer case offers a choice of four drive modes comprising 2WD, 4WD high-range, 4WD low-range and Auto (traction-sensing full-time 4WD). Also new is an automatic-locking rear differential.

Its armoury of advanced towing hardware and technology includes a 4500kg tow-bar with 12-pin wiring harness and integrated trailer brake controller.

Plus, there’s a rear-view camera with hitch guidance, automated trailer lighting test, in-vehicle trailering app with trailer profiles, trailer theft alert, trailer tyre pressure/temperature monitoring and lots more.

New MY24 features include adaptive cruise control which can be used when towing (detecting the additional weight behind the vehicle to automatically increase braking distances). Others are 'Trailer Side Blind Zone Alert' (TSBZA), which extends the blind zone area when towing, plus 'Gross Combination Mass Alert' (GCMA) which alerts if you exceed the GCM.

Official fuel consumption for this D-Max is 8.0L/100km on a combined cycle. 

Actual fuel consumption on this test, from pump to pump, was 10.6L/100km for the D-Max. 

The D-Max has a 76-litre fuel tank so, going by those fuel consumption figures, you should be able to get a driving range of about 717km from a full tank.

The dash readout was claiming 17.5L/100km at the end of our 351km test, which comprised mostly city and suburban driving plus some highway running with a full payload.

Our own figure, calculated from fuel bowser and tripmeter readings, came in slightly lower at 16.8, which is decent economy for a vehicle weighing more than 3.7 tonnes unladen in ‘real world’ driving.

So, based on our figures, you could expect a realistic driving range of around 800km from its big 136-litre tank.

The D-Max has never been a stand-out performer on-road in the ute segment, but it’s never been atrocious either.

The engine and auto combination yield a solid drivability rather than any liveliness, which works fine in this ute package.

Suffice to say, the D-Max is consistently middle of the pack when it comes to ride and handling or refinement comparisons, but again that suits this ute package. 

Besides, the D-Max is a body-on-frame ute with leaf spring rear suspension, so it can’t be expected to produce sportscar-like driving qualities, though the most recent upgrades to the D-Max did improve the steering and driver-assist tech.

But then came the Blade project, which wasn’t about improving the ute’s around-town driveability: Isuzu brought in the Walkinshaw Automotive Group, one of Australia’s leading automotive engineering firms, to make a version of the D-Max that was even better at off-roading than the standard unmodified D-Max.

Boiling down thousands of kilometres and man-hours of Walkinshaw’s work on the Blade into the most salient points for this yarn does not accurately reflect the effort of those involved in the years-long process … but here goes anyway: Walkinshaw has designed, engineered and remanufactured some of Australia’s most iconic nameplates, and, while the Blade reworking doesn’t introduce any new mechanical or driver-assist tech set-ups to the D-Max package, the introduction of new all-terrain tyres, wider wheel track and Aussie-tuned suspension (including Monroe 35mm MTV twin-tube dampers with lifted spring seats) has added a welcome measure of composure to this ute’s on-road behaviour.

And Isuzu big wigs must be feeling a bit chuffed at this point in time because Walkinshaw’s off-road mods have produced real results where they count most: off-road.

The standard D-Max in LS-U+ guise is an impressive 4WD ute, but the Blade version is a touch better on a variety of terrain for a number of reasons.

For starters, the Blade’s Walkinshaw-developed suspension set-up, with those 35mm twin-tube dampers in the mix, yields a more agreeable drive, with more comfort and better chassis control than a regular D-Max on fast dirt tracks and corrugated gravel roads. It manages to subdue most of the lumps and bumps you’re bound to drive over on your way to a beach- or bush-camping destination.

The Blade’s wheel track – at 1602mm, 32mm wider than the LS-U+’s 1570mm – gives this ute a slightly more planted posture than its standard stablemate for improved stability and handling.

And while the Blade’s tyres aren’t gung-ho mud-terrains or something similar, its 275/65R17 Goodyear Wrangler Duratrac RT all-terrain tyres do work sufficiently well on-road and off.

For low-range 4WDing, the Blade has all of the D-Max good stuff – including a tractable engine with plenty of low-down torque and a recalibrated off-road traction control (part of the most recent D-Max upgrades) – but its ground clearance (244mm vs the LS-U+’s 240mm) and off-road angles (29.2° approach, 19.2° departure and 25.2° breakover vs the LS-U+’s 30.5°, 19.0°, and 23.8°) don’t represent as much of an improvement over its stablemate as you’d expect in a vehicle touted by Isuzu as “an off-road ute without compromise” and “an unparalleled combination of off-road performance and rugged reliability”.

The Blade feels vulnerable to underbody knocks from rocks and the like, but it has 3mm-thick steel bash plate protection so there’s no need to lose any sleep over a few ‘rubbing dirt’ moments.

Its tubular sidesteps at least seem hardier than the standard D-Max’s sidesteps and seem able to cop knocks from rocks without crumpling.

If there’s any need for a vehicle recovery, the Blade has eight-tonne load-rated recovery points (with bracing between chassis rails for torsional rigidity) to work with.

Also, if you’re thinking about using your Blade as a touring platform, at a listed kerb weight of 2204kg, it is 89kg heavier than the LS-U+, and its payload is 896kg (down form the LS-U+’s 990kg). GVM is 3100kg, GCM is 6000kg.

Towing capacities remain at 750kg (unbraked) and 3500kg (braked).

Side-steps and large handles on the A- (and B-) pillars assist climbing aboard. It’s a very comfortable driving position, given the multiple seat and steering wheel adjustments along with plush elbow rests on both sides.

The large door mirrors, combined with numerous camera angles including the central rear view mirror's pin-sharp image, provide commanding all-around vision.

The steering is nicely weighted and surprisingly communicative for such a giant, providing good feel and response at all speeds.

The suspension tuning is supple enough to provide a smooth ride, yet retains enough firmness to minimise the ponderous feel inherent in vehicles of this size and weight.

Braking response is also reassuringly strong, without requiring huge pressure on the brake pedal to achieve it.

The 6.6-litre turbo-diesel V8 and 10-speed auto provide effortless performance. With maximum torque tapped at just 1600rpm, the engine is barely ticking over at city and suburban speeds.

And it requires less than 1500rpm to quietly maintain 110km/h on the highway, which combined with its low tyre and wind noise results in a supremely relaxed long-haul cruiser.

With its NB1 GVM rating, we loaded more than half a tonne into the load tub, which combined with our crew of two was just under its 733kg payload limit.

It simply didn’t notice the added weight, storming up our 13 per cent gradient, 2.0km-long set climb with acceleration unmatched by any loaded vehicle we’ve tested on this ascent.

Its engine-braking on the way down using the exhaust brake also set a new benchmark, never exceeding 50km/h and 2000rpm on overrun without once touching the brake pedal.

ANCAP star ratings are not applicable in this vehicle class, but it does come well equipped with six airbags including side-curtain protection for all outboard seating positions.

There’s also forward collision alert with low-speed AEB, lane departure warning, blind-spot monitoring (including when towing trailers), rear cross-traffic alert, front and rear parking assist, up to 14 camera views including 360 degrees ‘birds-eye’ and more.

There are three top tether points across the second row seat for securing baby capsules/child seats with ISOFIX anchors on the two outer positions.

The D-Max has a six-year/150,000km warranty and seven years of roadside assistance when you have your D-Max always serviced at a participating Isuzu ute dealer. That warranty is okay in terms of years, but unlimited kilometres would be a welcome sweetener.

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

Capped-price servicing covers the first five scheduled services for 24MY and later vehicle models (up to five years/75,000km - whichever occurs first) – at a flat price of $449 for each service.

The Silverado is covered by a three year/100,000km warranty with three years roadside assist.

Scheduled servicing is every 12 months/12,000km, whichever occurs first, and there's no capped-price servicing. This ownership package falls short compared to rivals like Ford's RHD F-150.