Luke Bentham is lying in the back of a sprinter van somewhere on the road to St. Louis, AC/DC's 'Powerage' in his ears and a show on the horizon. "Life is good," he grins, and for The Dirty Nil, it really is. But it wasn't always.

'The Lash', the Hamilton, Ontario trio's fifth album, arrives not as a refinement of their sound, but a rupture - a controlled demolition of expectations, industry pressure and overcooked perfectionism. Written and recorded in barely over two weeks, it finds the band "burning it all down to start again," returning to their roots not for nostalgia's sake, but survival.

"We wanted to make a more Spartan recording at a simpler studio and make it quickly," Luke explains. "I was really proud of the songs that I brought in, and our arrangements were effortless. We were in a really good spot and we wanted to capture it."

There's no additional faff here, just three old friends making a racket in a room, like they've always done. "As a matter of course, we do the hard yards in the jam space, a concrete bunker of a room with a blown-out PA system where we practise," Luke says. "If we can make a song sound good there, it will cook when we set the mics up."

Instead of polishing every take to oblivion, they committed to instinct. "We wanted to make it quickly and not agonise over revisions," he adds. "It never felt like we were rushed making this LP, we just leaned into the confidence that we had gained from making a few records already and didn't second-guess anything."

Helping bring that vision to life was longtime friend and first-time album collaborator Vince Soliveri, the band's front-of-house engineer turned producer. "It was a pure joy to finally make a record with our friend Vince," Luke says. "He has helped us make a lot of demos over the years, and it was time to do a full LP together."

One moment in particular sums up the sessions: "I walked into the booth and there was a strange old mic setup for me to sing into. I asked Vince why he chose that one, and he told me: 'It looks cool'. That spirit animated these sessions, and we made it purely for our own satisfaction."

There were no rules, no right way to do anything. They spent more time chasing feedback tones than curating perfect takes. They brought in violinist Sara Danae, and a cello she'd never touched before. "Despite having never played one before, she nailed it." And then there's Leo. "We got my dog Leo to howl on 'Gallop of the Hounds'. That was an incredible day."

While 'The Lash' may sound primal, it's rooted in something deeper: a need to reclaim joy after years of industry conditioning.

"We've made a few records by this point; this is our fifth studio LP," Luke reflects. "As our career has advanced, so have the pressures to make something 'with legs' or whatever. It's pushed us further but also hit a tipping point where some of the joy of rock'n'roll has yielded to the pressures of the industry."

They'd had enough. "With this LP, we wanted to return to a feeling of making music for the sole purpose of our satisfaction. We made what we wanted to make, let the chips fall where they may."

That freedom came with relief, not risk. "A complete relief. When the fun is gone, it's over," Luke says. "We know a lot of bands - well, ex-bands - who failed to reclaim their joy as their passion became a business."

He's quick to recall the thrill of their earliest work. "Our first significant recording, 'Fuckin' Up Young', was recorded at a cottage with minimal equipment, and we had a blast doing it. We needed to reconnect with our inner drive to do this. To make a howling racket for the sheer hell of it."

There's plenty of rage in 'The Lash', notably on early single 'Rock N' Roll Band', written in a fit of frustration. "I can't remember why there was a bee in my bonnet that day, but I shut my laptop and fired up my Marshall, and it was done in 20 minutes," Luke says. "I felt satisfied with my snotty tune and was stoked to show Kyle. When I played it for him, I watched the smile slowly creep across his face, and that was the first song of the batch."

Elsewhere, the album digs into something more bruised. Kyle Fisher, drummer and spiritual co-pilot, has jokingly called this "Luke's therapy record". Luke's not so sure. "Kyle said it's my therapy record, but to be honest, I never think about my own lyrics. I pick up my Les Paul and start yelling. I rarely revise things and throw a lot of stuff away. I'm more tuned in to the phonetic sound of words rather than their pure meaning. Sometimes it's gibberish, but I usually know when I have something decent."

If that all sounds heavy, it is - and not just sonically. While on a trip to Rome, Luke stumbled across a forgotten corridor in the Vatican full of obscure bronze reliefs. One in particular stopped him in his tracks. "It was two guys fighting over a knife," he recalls. "That image ended up guiding a lot of this record."

That piece - The Horrors of War by Francesco Messina - became 'The Lash''s visual and emotional anchor, a symbol of how raw emotion can still be beautiful, or at least powerful. "Everything about 'The Lash' evokes a certain sort of brutality," he says.

And yet, there's vulnerability, too. Songs like 'Spider Dream' and 'Fail In Time' soften the edges with a kind of weary clarity: jangle here, hardcore breakdown there. The extremes never feel forced. "I think that we have some of our more raging tunes on this record," Luke notes, "but also some of our more, dare I say, delicate moments that we've ever committed to tape."

As The Dirty Nil approach their twentieth year, there's no grand plan to celebrate. "We haven't discussed any formal plans yet," Luke admits, "but at the minimum, Kyle and I will open a very expensive bottle of scotch."

In many ways, they're still those same teenagers thrashing away in suburban garages. "I think the NIL of 20 years ago had large and vague dreams; now we get to live them."

And what still surprises him? "How much joy I get from bashing away with Kyle, just the two of us in our practice space," Luke says. "I might feel 35 while I'm mowing the lawn or doing my taxes, but when I put on my guitar and get together with Kyle, I'm 16 again."

He pauses, then signs off with characteristic sincerity: "I love being alive, I love rock'n'roll, I love our new album and I love Kyle. Thank you to anyone who has ever supported our band. We love you."