Will it work with car being stationery

Yes but i wouldn't burn a whole tank of fuel stationary. If you mean just while in traffic, yes as long as the engine is running.

when do you put it in?empty tank or anytime

It states to wait until tank is nearly empty then add immediately (ie at Petrol station and without starting the engine) before filling with approx 40-80 litres of diesel per full 430ml of additive. I used half in 40 litres

Is it recommended for EGR cleaning ?

Not sure if it cleans EGR But works incredibly great for turbo,DPF,and cat , best on market does what it says

How often can it be used as i do 600 mile a week and first one made a difference

It takes probably around 10 to 20 thousand miles for the carbon to build up in places like the EGR (exhaust gas recirculation valve ) if yours has never had this treatment you will have possibly noticed a difference before and after? Hope that’s a help

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Archoil AR6400-D MAX Pro Diesel DPF, Turbo, CAT, Injector Cleaner - 400ml | Complete Diesel Engine Cleaner - Entire Fuel System, Particulate Filter & Combustion Area - EGR & Turbo Additive for MOT Pass

Product ID: 53037545

🔥Cleans DPF, EGR, turbo & injectors

♻️Lowers emissions & black smoke

⚙️400ml treats up to 80L diesel

₨1177

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Description

🚀 Unlock your diesel’s hidden power and cleaner future!

BOOST YOUR ENGINES MOJO - Restores power, smooth idle, and throttle response by eliminating carbon buildup—even in high-mileage diesels.
EFFORTLESS MAINTENANCE RITUAL - Simply pour before refueling—no tools or expertise needed. Trusted by mechanics and fleet pros for over 10 years.
ALL IN ONE DIESEL SYSTEM RESCUE - Cleans DPF, EGR valves, injectors, turbo, and more in a single tank treatment for peak engine health.
ECO FRIENDLY PERFORMANCE UPGRADE - Significantly reduces harmful exhaust emissions and black smoke, helping you pass MOT tests with confidence.
PRO GRADE FORMULA WITH CETANE BOOST - Includes advanced nano catalysts and premium 2-EHN cetane improver for smoother cold starts and quieter combustion.

Archoil AR6400-D MAX Pro is a professional-strength 400ml diesel fuel additive that cleans the entire fuel system—including DPF, EGR, injectors, turbo, and catalytic converter—in one treatment. It restores engine performance, reduces emissions and black smoke, and improves fuel economy with an advanced formula featuring nano catalysts and a high-purity cetane improver. Easy to use and trusted by professionals, it’s designed for all diesel engines and helps maintain peak efficiency while preparing vehicles for MOT testing.

Specifications

ASIN	B00KQ1ALKC
Best Sellers Rank	471 in Automotive ( See Top 100 in Automotive ) 21 in Fuel Systems
Brand	Archoil
Customer Reviews	4.5 4.5 out of 5 stars (1,710)
Date First Available	2 April 2021
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Guaranteed software updates until	unknown
Item Weight	431 g
Item model number	FBA_AR6400-D
Manufacturer	Archoil
Manufacturer part number	AR6400-D 430
Model	AR6400-D MAX
Product Dimensions	20.32 x 20.32 x 20.32 cm; 430.91 g

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