Refresh the page

Alza Days - Cleaning Additives

The campaign runs from June 1 to June 22, 2026 (“Campaign”).
The list of products currently available in the Campaign (“Products”) can be found on this website below.
A Product is considered purchased at a discounted price as part of the Campaign only once the order has been confirmed by Alza and the payment has been completed by the customer. Simply placing the Product in the cart does not constitute a purchase. If the Buyer selects cash-on-delivery payment, submitting the order to Alza within the Campaign period is sufficient, but the discount will only be valid upon successful payment upon delivery.
Alza reserves the right to limit the number of Products a single buyer may purchase during the Campaign for certain items. Should such purchase limits apply, Alza's system will automatically prevent buyers from adding more Products to their cart than the permitted purchase quantity for the duration of the Campaign.
Available stock of select Products will be allocated among consumers in the Czech Republic, Slovakia, Austria, Hungary, and other countries served by Alza.
Discounts on Products are valid only during the Campaign period or while supplies last. Alza reserves the right to change the selection of discounted Products at any time during the Campaign.
The general terms and conditions of the Campaign can be found here.

Den Braven Carburettor Cleaner 400ml TECTANE - Cleaner

Den Braven Carburettor Cleaner 400ml TECTANE

2,400 Ft 2,820 Ft

Cleaner For perfect cleaning of individual carburettor parts, but also as a whole. Can be used for cleaning throttle valves and valves when running on empty.

STP Gasoline injection cleaner - 200 ml - Additive Substance

STP Gasoline injection cleaner - 200 ml

2,500 Ft 3,190 Ft

Buy at the price for both existing and new AlzaPlus+ members 2,130 Ft

Additive Substance - restores engine power, cleans injectors and intake valves

SONAX Injection and carburettor cleaner, 250ml - Additive Substance

SONAX Injection and carburettor cleaner, 250ml

3,500 Ft 3,690 Ft

Additive Substance - serves to prevent problems such as starting, engine idling, weak engine response to throttle position, and power loss

SONAX Fuel System Cleaner petrol, 250ml - Additive Substance

SONAX Fuel System Cleaner petrol, 250ml

3,690 Ft 3,890 Ft

Additive Substance - for cleaning your fuel system, clean the carburettor and valves, for the impellers and passages and piston heads

STP Diesel additive - 200 ml - Additive Substance

STP Diesel additive - 200 ml

2,300 Ft 2,890 Ft

Buy at the price for both existing and new AlzaPlus+ members 1,960 Ft

Additive Substance - keeps injectors free from impurities and biofuels in fuel, maintains consistent engine power

SONAX Diesel Fuel System Cleaner, 250ml - Additive Substance

SONAX Diesel Fuel System Cleaner, 250ml

3,690 Ft 3,890 Ft

Additive Substance - ensures optimal combustion, removes deposits from the injection and combustion chambers of the piston, cleans the entire fuel system, protects against...

SONAX Oil additive, 250ml - Additive Substance

SONAX Oil additive, 250ml

4,320 Ft 4,550 Ft

Additive Substance - an anti-friction agent producing a highly resistant sebum on all friction and slippery surfaces

STP Diesel Engine Cleaner Start-Stop 200 ml - Additive Substance

STP Diesel Engine Cleaner Start-Stop 200 ml

1,900 Ft 2,490 Ft

Buy at the price for both existing and new AlzaPlus+ members 1,620 Ft

Additive Substance - helps the engine with START-STOP mode on, protects the engine, reduces fuel consumption

MOTUL Diesel System Clean Auto, 300 ml - Additive Substance

MOTUL Diesel System Clean Auto, 300 ml

4,170 Ft 4,390 Ft

Additive Substance - Diesel additive to remove dirt from the fuel system, suitable for DFP engines

SONAX Diesel Protection System-Common Rail, 250ml - Additive Substance

SONAX Diesel Protection System-Common Rail, 250ml

4,020 Ft 4,230 Ft

Additive Substance improves lower quality diesel and ensures the best performance for the modern diesel system, the lubrication of diesel fuel

SONAX Octane Boost, 250ml - Additive Substance

SONAX Octane Boost, 250ml

3,690 Ft 3,890 Ft

Additive Substance - increases the octane number from 2 to 3 units, protects the catalytic converter and sensors, also suitable for turbo engines

STP Engine cleaner (flush) for oil change 450ml - Additive Substance

STP Engine cleaner (flush) for oil change 450ml

3,900 Ft 4,570 Ft

Additive Substance - effectively removes engine deposits, maintains efficient oil circulation, protects engine

VP Racing Diesel All in One complete diesel additive, 473 ml - Additive Substance

VP Racing Diesel All in One complete diesel additive, 473 ml

7,600 Ft 10,790 Ft

Additive Substance

MOTUL Boost And Clean Moto, 200 ml - Additive Substance

MOTUL Boost And Clean Moto, 200 ml

4,740 Ft 4,990 Ft

Additive Substance for petrol - winter and summer, for motorcycles, carburettor and throttle body cleaner, injection cleaner and fuel system cleaner, suitable for four-stroke...

NANOTECH-EUROPE Diesel Oil Cleaner - Tungsten Nano Coating 240 ml - Additive Substance

NANOTECH-EUROPE Diesel Oil Cleaner - Tungsten Nano Coating 240 ml

19,470 Ft 20,490 Ft

5 sizes

Additive Substance for oil - winter and summer, for passenger cars, engine cleaner, reduces friction, 240 ml volume for 8 l

VP Racing Octanium® gasoline additive for up to 8 octane units, 946 ml - Additive Substance

VP Racing Octanium® gasoline additive for up to 8 octane units, 946 ml

10,700 Ft 15,190 Ft

Additive Substance

NANOTECH-EUROPE Diesel Oil Cleaner - Tungsten Nano Coating 140 ml - Additive Substance

NANOTECH-EUROPE Diesel Oil Cleaner - Tungsten Nano Coating 140 ml

12,250 Ft 12,890 Ft

5 sizes

Additive Substance for oil - winter and summer, for passenger cars, engine cleaner, reduces friction, 140 ml volume for 4.5 l

NANOTECH-EUROPE Oil cleaning additive for diesel engines - Tungsten Nano coating 110 ml - Additive Substance

NANOTECH-EUROPE Oil cleaning additive for diesel engines - Tungsten Nano coating 110 ml

9,490 Ft 9,990 Ft

5 sizes

Additive Substance for oil - winter and summer, for passenger cars, engine cleaner, reduces friction, 110 ml volume for 3.5 l

NANOTECH-EUROPE Oil cleaning additive for diesel engines - Tungsten Nano coating 300 ml - Additive Substance

NANOTECH-EUROPE Oil cleaning additive for diesel engines - Tungsten Nano coating 300 ml

20,420 Ft 21,490 Ft

5 sizes

Additive Substance for oil - winter and summer, for passenger cars, engine cleaner, reduces friction, volume 300 ml for 10 l

VP Racing Fuel Stabilizer gasoline additive for eliminating the effects of biosolids, 236 ml - Additive Substance

VP Racing Fuel Stabilizer gasoline additive for eliminating the effects of biosolids, 236 ml

5,400 Ft 7,690 Ft

Additive Substance

VP Racing Cetanium® diesel fuel additive to increase cetane number by up to 10 units, 946 ml - Additive Substance

VP Racing Cetanium® diesel fuel additive to increase cetane number by up to 10 units, 946 ml

10,700 Ft 15,190 Ft

Additive Substance

VP Racing 7-IN-1 complete petrol additive, 473 ml - Additive Substance

VP Racing 7-IN-1 complete petrol additive, 473 ml

5,400 Ft 7,690 Ft

Additive Substance

NANOTECH-EUROPE Diesel Oil Cleaner - Tungsten Nano Coating 180 ml - Additive Substance

NANOTECH-EUROPE Diesel Oil Cleaner - Tungsten Nano Coating 180 ml

15,860 Ft 16,690 Ft

5 sizes

Additive Substance for oil - winter and summer, for passenger cars, engine cleaner, reduces friction, volume 180 ml for 6 l

VP Racing Power Boost petrol additive, 473 ml - Additive Substance

VP Racing Power Boost petrol additive, 473 ml

5,400 Ft 7,690 Ft

Additive Substance

Try our cookies

Alza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.

More information

P-DC1-WEB10