Why does it take so long for this to ship??

Federal regulations require that a chemical fluid of this quantity be shipped via ground-shipping.

Can the Prestone AS250 be used in the windshield washer fluid reservoir that is under the hood?.

Yes you can use Prestone De-Icer for your underhood washer reservoir and you also use the spray either with the pump action or manual spray of the pressured cans, I have be using this stuff for over 20yrs. I even use them for all season items too !

What are the ingredients? What is the percentage of methanol in this product?

The label only states as follows: "Contains methyl alcohol (67-56-1), ethylene glycol (107-21-1)." I understand that methyl alcohol is methanol. As for the three-number sequence, I understand this to pertain to the "CAS" registration number ("CAS" being the "Chemical Abstracts Service"), and does not provide any information as to percentage of any component. However, as methanol is the first listed ingredient, I presume that it is at least 50% of the mix. Not sure why this is of importance to you, but if you need to know the percent of methanol in this product, perhaps best you contact Prestone (see http://prestone.com/enmx/products/car_care/windshield_washer_fluids).

will this fluid damage my silicone wiper blades?

I only use silicone wiper blades on my vehicles, and I only use Prestone washer fluid in my vehicles. I have had zero issues or negative interactions between the wipers and the fluid.

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AS250 De-Icer / Winter Windshield Washer Fluid, 1 Gallon

AS250 De-Icer / Winter Windshield Washer Fluid, 1 Gallon

Product ID: 10961958

Details

Brand
Prestone
Item Form
Liquid
Material Feature
Liquid
Scent
Unscented
Specific Uses For Product
Windshield

🧼Power cleans winter grime

❄️Melts ice & frost fast

🌡️Protects down to -34°F

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208 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Prestone
Item Form
Liquid
Material Feature
Liquid

Description

❄️ Drive Clear, Drive Confident: Winter’s Ultimate De-Icer

REFREEZE DEFENSE - Prevents dangerous windshield refreeze, keeping your view crystal clear.
STREAK GLARE FREE - Enhances visibility with a spotless, glare-free finish—perfect for rain-sensing tech.
INSTANT ICE MELTDOWN - Clears frost and ice in seconds for safer, stress-free winter drives.
EXTREME COLD PROTECTION - Formulated to perform flawlessly down to -34°F, so you never get stuck.
HEAVY DUTY WINTER CLEAN - Powerfully removes road salt and grime, maintaining pristine windshield clarity.

Prestone AS250 De-Icer Winter Windshield Washer Fluid is a 1-gallon concentrated formula designed to melt ice and frost rapidly, protect windshield visibility down to -34°F, and prevent refreeze. It power cleans away winter salt and grime without streaks or glare, and is safe for rain-sensing windshields—ensuring your winter drives stay safe and clear.

Specifications

ASIN	B001E1RVKQ
Best Sellers Rank	#25,700 in Automotive ( See Top 100 in Automotive ) #34 in Windshield Washer Fluids
Brand	Prestone
Brand Name	Prestone
Contains Liquid Contents?	No
Customer Reviews	4.7 out of 5 stars 1,842 Reviews
Global Trade Identification Number	00797496860224
Included Components	Prestone
Item Form	Liquid
Item Type Name	Prestone AS250 De-Icer Windshield Washer Fluid - 1 Gallon
Item Volume	1 Gallons
Item Weight	1 Pounds
Manufacturer	Prestone
Material Feature	Liquid
Material Features	Liquid
Model Number	AS250
Number of Items	1
Part Number	AS250
Scent	Unscented
Size	20 count (Pack of 1)
Special Features	Concentrated
Specific Uses For Product	Windshield
Surface Recommendation	Stone
UPC	797496860224
Unit Count	20 Count
Warranty Description	LIMITED WARRANTY

Reviews

L**A

4.02.2026

K**H

8.02.2026

R**D

21.02.2026

G**.

26.02.2026

M**L

25.01.2026

E**G

29.03.2026

A**G

5.02.2026

M**K

1.03.2026

A**M

20.02.2026

J**S

6.01.2025

A**I

14.12.2024

A**R

26.01.2026

M**D

28.12.2021

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