prestone 2.5 ltrs i will be making 15 ltrs is this to strong mix for spring & summer use will it damage paint if too strong

Nothing to indicate that it damages paint in this concentration

How much of ml screenwash do I need to add if I have a 5 litre bottle?

Prestone's recommended minimum is about 250ml, i.e. 20:1 but twice that, I find, gives a good, efficient mix. (you may have noticed that it can be used neat, protecting down to -18c, so there are no hard-and-fast rules.)

Do we need to add deionised water to dilute the liquid?

If you use it in the winter you don’t add water , keep it concentrated. If you use it from spring till autumn you may want to dilute it with water, it’s up to you. I used it concentrated

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Prestone Screenwash Concentrate 2.5L, Screen Wash For Cars - Winter, High Performance Cleaning With Streak Free Formula, Extreme Performance Super Concentrated Screenwash, Reduce Plastic, 2.5 Litre

Product ID: 414168933

Details

Brand
Prestone
Item form
Liquid
Item volume
2.5 Litres
Material feature
Eco-Friendly
Number of items
1
Scent
Rain

✨Streak-free, high performance clean

💧Super concentrated - makes up to 50L

❄️Melts ice down to -18°C

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Description

❄️💧 Drive Clear, Drive Confident: The Ultimate Screenwash Upgrade

TRUSTED LEGACY - Backed by 90+ years of automotive expertise for reliable vehicle care.
CRYSTAL CLEAR VISION - Advanced streak-free formula ensures spotless windscreens every time.
CUSTOMIZABLE DILUTION - Adjust concentration by season—neat for winter, diluted for warmer months.
ULTRA CONCENTRATED POWER - 2.5L bottle yields up to 50L of premium screenwash—economical and eco-friendly.
YEAR ROUND WEATHER WARRIOR - Tackles dirt, ice, and sun dazzle in any season for safer drives.

Prestone Screenwash Concentrate 2.5L is a super-concentrated, high-performance windscreen washer fluid designed to melt ice down to -18°C and remove stubborn dirt with a guaranteed streak-free finish. Versatile for year-round use, it dilutes to suit seasonal conditions and delivers up to 50 litres of premium screenwash. Manufactured in the UK and backed by over 90 years of automotive expertise, it ensures safer, clearer driving in all weather.

Specifications

ASIN	B09TW9FWYV
ASIN	B09TW9FWYV
Best Sellers Rank	40 in Automotive ( See Top 100 in Automotive ) 2 in Antifreeze & Coolants 3 in Automotive Window Care
Brand Name	Prestone
Contains Liquid Contents?	Yes
Country of Origin	United Kingdom
Country of origin	United Kingdom
Customer Reviews	4.6 4.6 out of 5 stars (4,758)
Customer reviews	4.6 4.6 out of 5 stars (4,758)
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
Included Components	2.5L Concentrated Screen Wash
Item Form	Liquid
Item Type Name	Screen Wash for Cars, Concentrate makes up to 50 Litres of Screenwash, protects to -18C
Item Volume	2.5 Litres
Item Weight	2400 Grams
Item model number	PSCW0039A
Manufacturer	Holt Lloyd International
Manufacturer	Holt Lloyd International
Material Features	Eco-Friendly
Model Number	PSCW0039A
Number of Items	1
Part Number	PSCW0039A
Product Dimensions	10.2 x 14.6 x 22.5 cm; 2.4 kg
Scent	Rain
Size	2.5 l (Pack of 1)
Special Features	Concentrated: Makes up to 50L of Screenwash
Specific Uses For Product	Automotive Exterior
Surface Recommendation	Plastic
Unit Count	2500.0 millilitre

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219.93 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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