Product details
Archoil AR6400-D MAX Pro Diesel Engine, Turbo, DPF Cleaner 400ml & AR6900-D 250ml
If you’re running a diesel engine, you’ll know all too well how deposits love to build up in places like your fuel system, turbo, diesel particulate filter (DPF), and catalytic converter (CAT). These pesky little gremlins don’t just hang about harmlessly—they can cause rough idling, poor fuel economy, crank up emissions, and might even trigger those dreaded engine warning lights or limp mode. That’s exactly where the Archoil AR6400-D MAX comes into its own. It’s a proper high-strength cleaner designed to tackle all those issues head-on and breathe new life into your diesel engine.
What’s in the box and how do you use it?
You get a 400ml bottle of AR6400-D MAX alongside a 250ml bottle of AR6900-D Max. Important bit—don’t go mixing these two together! Start by pouring the AR6400-D MAX straight into your fuel tank before topping up with diesel. This clever cleaner sets to work quickly, dissolving deposits molecule by molecule, which helps everything from turbo lag to DPF regeneration. Then, on your very next fill-up, add the AR6900-D Max. It’s specially formulated to tackle stubborn gunk clogging your fuel injectors, including carbon and varnish build-ups that can really muck things up.
Why pick AR6400-D MAX?
It’s more than just a cleaner. AR6400-D MAX also oils up your high-pressure injection system and fuel pumps, giving them a bit of TLC as it works. Plus, it contains a cetane booster that enhances combustion efficiency, so your engine runs smoother and quieter—a proper godsend when you’re stuck in traffic or on a long haul. The combustion catalyst also helps ensure a cleaner burn, cutting down on harmful emissions and keeping your engine tip-top for longer.
Who’s it for?
Whether your diesel is a modern Euro 5 or 6, or an older model chugging away on pump diesel, bunkered fuel, or even biodiesel blends, this kit is right up your street. It’s especially handy if you’ve noticed rough idling, a dip in fuel economy, or if that engine warning light has popped on unexpectedly. Using AR6400-D MAX every 5,000 miles keeps things ticking over nicely, and following up with AR6900-D Max helps keep your injectors spick and span.
A few handy tips and things to watch out for
Always chuck in the AR6400-D MAX first, then fill up your tank straight away. One bottle treats between 40 and 80 litres of fuel, so aim for a mix ratio of roughly 1:100 to 1:200. Resist the urge to overdose—more isn’t always better here. Regular use stops deposits building up in the first place, keeping your diesel engine and emissions kit running smoothly and helping you dodge costly repairs and annoying limp modes.
- Rapidly cleans fuel system and combustion areas for improved engine performance
- Breaks down stubborn deposits in turbo, DPF, and catalytic converter
- Boosts cetane rating for smoother running and quieter engine noise
- Lubricates fuel system components to protect against wear and tear
- Suitable for all diesel engines, including those using biodiesel blends
- Easy to use with clear instructions—add AR6400-D MAX first, then AR6900-D Max on the next fill-up
- Helps reduce harmful exhaust emissions for a cleaner environment
To put it simply, if you want your diesel engine running smoother, cleaner, and more efficiently, this Archoil duo is a cracking choice. No faff, no fuss—just straightforward cleaning power that genuinely makes a difference.