Combustion makes NOx
Diesel burns hot, and heat plus the nitrogen in ordinary air produces nitrogen oxides. The harder the engine works, the more NOx comes out.
AdBlue Supply
Your Friendly AdBlue Partner
Keeping diesel vehicles running clean, efficient and compliant — Australian-made, VDA-certified, delivered from our Sydney Metro HQ.
What is AdBlue?
AdBlue® is a 32.5% urea solution — also known as diesel exhaust fluid (DEF) or AUS 32 — that reduces harmful nitrogen oxide (NOx) emissions from modern diesel engines. It's dosed into the exhaust stream of vehicles fitted with Selective Catalytic Reduction (SCR) systems, helping the environment while keeping your fleet compliant with emission standards. Using AdBlue can even improve fuel efficiency, giving you peace of mind and savings on the road.
We provide high-quality, VDA-certified AdBlue, manufactured to ISO 22241 standards, so you know you're getting a product you can trust. Whether you need bulk delivery for a large fleet, handy containers for smaller operations, or complete on-site storage solutions, we've got you covered.
- VDA-certified, ISO 22241 manufactured
- Sydney Metro HQ, servicing clients nationwide
- Flexible delivery schedules & expert advice
- Storage & dispensing equipment available
Cleaner air, smarter operations
A partner you can trust — that's Atlas Distributions. Our team is passionate about helping businesses of all sizes find the right AdBlue solution, so you can focus on running your business while we handle the rest.
How it works
Inside an SCR system
AdBlue isn't a fuel additive and it never touches the diesel. It works downstream, in the exhaust, and understanding that explains almost everything else about it — why it's dosed in proportion to fuel burn, why purity matters so much, and why the vehicle stops you if the tank runs dry.
AdBlue is metered in
A dosing module sprays a fine mist of AdBlue into the hot exhaust ahead of the catalyst, metered by the engine ECU against exhaust temperature and NOx readings.
Urea becomes ammonia
Exhaust heat breaks the 32.5% urea solution down into ammonia and carbon dioxide — the ammonia is the active ingredient the catalyst needs.
NOx becomes nitrogen
Across the SCR catalyst, ammonia and NOx react to form plain nitrogen and water vapour. A healthy system strips out the large majority of engine-out NOx.
Why SCR engines drink less diesel
Before SCR, the way to hold NOx down was to recirculate large volumes of exhaust gas back through the engine, which cools combustion and cuts NOx — but at a cost in efficiency, and it makes the engine work harder for the same output. SCR moves that job out of the cylinder and into the exhaust, so the engine can be tuned to burn fuel the way it burns best.
That's the trade at the heart of the technology: you buy a modest amount of AdBlue and get back cleaner exhaust and better fuel economy. It's also why AdBlue consumption tracks fuel burn so predictably — dose and diesel rise and fall together, which is exactly what makes a percentage-based estimate reliable.
Purity is the whole point
An SCR catalyst is a precision emissions component, and it's chemically fussy. Diesel, dust, tap water or the wrong container material can poison it — and the damage doesn't announce itself, it shows up later as a fault code and a repair bill that dwarfs a year of fluid.
ISO 22241 exists to set those purity limits, and VDA certification is the audit that says a producer meets them. That's the standard our AdBlue is made to, batch after batch.
Consumption
How much AdBlue will you actually use?
The working rule across modern diesel fleets is about 5% of diesel consumption. Burn 20,000 litres of diesel in a year and you'll get through roughly 1,000 litres of AdBlue — one IBC. Burn 200,000 litres and you're at 10,000 litres of AdBlue, which is bulk delivery territory.
The spread around that 5% is real, though. Older Euro 5 engines often sit closer to 3–4%. Euro 6 and ADR 80/04 engines lean harder on SCR and can run at 6–7% under heavy load, in hot weather, or on stop-start city work where the engine spends its life at high load and low speed. Idling, towing, hills and heavy payloads all push it up.
Distance is a poor guide on its own, because two trucks covering the same kilometres can burn very different amounts of fuel. Work from litres of diesel wherever you can — and if you only have kilometres, the calculator converts them for you.
Calculate my AdBlue requirement →| Diesel per year | AdBlue at 5% | Suits |
|---|---|---|
| 2,000 L | ~100 L | 10L drums |
| 20,000 L | ~1,000 L | 1000L IBC |
| 60,000 L | ~3,000 L | IBCs on schedule |
| 200,000 L | ~10,000 L | Bulk into your tank |
| 750,000 L | ~37,500 L | Bulk, recurring |
Vehicle AdBlue tanks vary just as widely — roughly 10–20 litres on a diesel ute or van, and anywhere from 40 to over 100 litres on a prime mover, which is why a long-haul truck can go a full week between top-ups.
Our range
Choose your AdBlue pack size
From a single drum on a workshop shelf to a tanker filling your on-site storage — pick the format that matches how you operate.
10L AdBlue Drums
$34.00 per drum, inc. GST
Passenger cars, utes and top-ups
View 10L drums →1000L AdBlue IBC
$1,067.00 per IBC, inc. GST
Fleets, depots and workshops
View 1000L IBC →Bulk AdBlue
Custom quote
3,000L+ into your own tank
View bulk supply →
By sector
AdBlue for every application
On the road
Trucks & Buses
Effective, high-quality AdBlue solutions that guarantee compliance, improved performance and reduced emissions to keep your fleet running.
For a fleet that's cleaner and more effective, we'll size the right pack format and delivery schedule around the kilometres you actually run.
Get fleet pricing →
Everyday diesel
Passenger Cars & Vans
Reliable AdBlue for passenger cars and light commercials to help reduce NOx emissions and meet Euro 6 standards — keeping your diesel vehicle clean and efficient.
Our 10L drums are the easy option here: sealed, contamination-free and simple to store in a garage or the back of a van.
View 10L drums →
Off-Road & Farming
Specially formulated for agricultural and off-road machinery, helping reduce emissions for construction equipment, utility vehicles and non-road mobile machinery.
Industrial Plants
Bulk delivery and on-site storage solutions designed around continuous plant operations, with flexible scheduling to keep supply reliable.
Trains
Long-distance and backup diesel trains use AdBlue to help reduce NOx emissions and stay within environmental compliance.
Storage & handling
Keeping AdBlue in spec on site
AdBlue is non-flammable, non-toxic and safe to handle — but it is a precision fluid, and it's easy to ruin without realising. Four things account for nearly every out-of-spec tank we hear about.
Heat shortens its life
Stored sealed between 5°C and 25°C, out of direct sunlight, AdBlue holds its spec for around 12 months. Leave it baking in a yard through an Australian summer and the urea starts breaking down far sooner. Shade, or better still a shed, buys you the shelf life you paid for.
Practical upshot: hold two to three months of stock, not a year's worth. We'll set a recurring delivery so the tank stays full without the product ageing on you.
Contamination is unforgiving
A splash of diesel, a dusty funnel, a hose that's been used for something else, or a top-up from the tap — any of these can take a tank of AdBlue out of spec, and there's no way to tell by looking at it.
Keep dedicated pumps, nozzles and containers for AdBlue only, keep drums sealed until they're used, and never dilute it. The water in AdBlue is demineralised for a reason: the minerals in tap water poison the catalyst.
Materials matter
AdBlue is corrosive to some common metals. Stainless steel (304 or 316), high-density polyethylene and polypropylene are all fine — which is what drums, IBCs and proper dispensing kits are made from.
Copper, brass, aluminium, zinc and plain carbon steel are not. Improvised storage in a spare fuel drum or a decommissioned tank is the fastest way to contaminate good product.
Freezing and crystals
AdBlue freezes at about −11°C. That's rare across most of Australia but real on an inland or alpine winter night — and it does no harm: it thaws back to full strength, and vehicle tanks and lines are heated to handle it.
The white crust you sometimes see around a filler neck is just urea left behind as spilt fluid evaporates. It's harmless — rinse it off with water before it builds up on paint or connections.
Setting up a new site? We supply the storage tanks, pumps and nozzles alongside the product — tell us about your site and we'll spec it.
FAQ
Frequently Asked Questions
What is AdBlue?
AdBlue is a 32.5% urea solution used in diesel vehicles fitted with Selective Catalytic Reduction (SCR) systems. It converts harmful nitrogen oxide (NOx) emissions into harmless nitrogen and water vapour, helping vehicles meet modern emission standards.
Is Atlas AdBlue certified?
Yes — our AdBlue is VDA-certified and manufactured to ISO 22241 standards, so you can be confident it meets the quality specification required by vehicle and engine manufacturers.
How should I store AdBlue?
Store AdBlue in a cool, shaded area between 5°C and 25°C, away from direct sunlight, in its original sealed container. Avoid contamination from dust, water or other chemicals, as this can affect its performance.
How much AdBlue will I need?
The working rule is about 5% of your diesel consumption — 20,000 litres of diesel a year works out to roughly 1,000 litres of AdBlue. Older Euro 5 engines often sit nearer 3–4%; Euro 6 engines can reach 6–7% under load. Our AdBlue calculator turns your diesel usage or kilometres into litres per week, month and year, and tells you which pack size suits.
What happens if a vehicle runs out of AdBlue?
You'll get dash warnings well before it's empty. Ignore them and the engine derates — power and speed are progressively cut — and once the tank is dry many vehicles won't restart until AdBlue is added. It's a designed compliance measure, not a breakdown, but it will still strand a load, which is why keeping a buffer on site is worth far more than the fluid costs.
Does AdBlue freeze?
It freezes at about −11°C, which only comes up in inland and alpine parts of Australia. Freezing does no damage — it thaws back to full strength and correct concentration — and vehicle AdBlue tanks and lines are heated so the system works from a cold start.
What is the shelf life of AdBlue?
Around 12 months in a sealed container stored between 5°C and 25°C, away from direct sunlight. Sustained heat is what shortens it, so a shaded or indoor store makes a real difference. We'd rather set up a recurring delivery sized to two or three months of your usage than sell you a year's worth that ages in the yard.
Can I top up AdBlue with water or a cheaper urea solution?
No. AdBlue is a precise 32.5% urea solution in demineralised water, and the SCR system doses on the assumption that concentration is exact. Diluting it — or using an agricultural or technical-grade urea solution that doesn't meet ISO 22241 — throws the dosing out and can poison the catalyst. Catalyst replacement costs many times what the fluid saves.
Does AdBlue affect fuel economy?
Indirectly, yes — and in your favour. Because SCR handles NOx in the exhaust, the engine doesn't have to be choked with heavy exhaust gas recirculation to stay compliant, so it can be tuned for efficient combustion. That's why SCR-equipped engines generally return better fuel economy than the EGR-heavy approach they replaced.
Is AdBlue safe?
AdBlue is non-flammable, non-toxic and non-hazardous. It's safe to handle, though it should not come into contact with diesel fuel or be added to a diesel fuel tank.
Does Atlas Distributions supply AdBlue equipment?
Yes — we offer a range of storage and dispensing equipment alongside our AdBlue supply, including pumps, nozzles and on-site tanks. Let us know what you need on the quote form and our team will advise on the right setup.
Where does Atlas Distributions deliver AdBlue?
We deliver Australia-wide from our Sydney Metro headquarters, with flexible delivery schedules tailored to your operation.
Can I collect my AdBlue order?
Get in touch via the quote form or call us on +61 435 074 361 to discuss collection options for your order.
What are the benefits of bulk AdBlue delivery?
Bulk delivery reduces cost per litre, cuts down on packaging waste, and means fewer deliveries to manage — ideal for fleets and industrial operations with consistent, ongoing usage. See our bulk AdBlue supply page for details.
How often should I refill my AdBlue tank?
This depends on your tank size and usage rate. We can set up a recurring delivery schedule so your tank never runs low — just let us know your typical consumption on the quote form.
How do I place an order or request a quote?
Fill out our Request a Quote form with your sector, pack size and delivery details, or contact us directly on +61 435 074 361 or sales@atlasdistributions.com.au.
How do I use AdBlue safely?
Always use AdBlue in the dedicated AdBlue tank on your vehicle — never mix it with diesel. Wear gloves when handling large containers, and rinse any spills with water promptly, as AdBlue can crystallise on surfaces.
Where can I find more technical information about AdBlue?
Reach out via our contact page — we're happy to walk through technical specifications, ISO 22241 documentation, or our Safety Data Sheet.