DU-MOST Windshield Washer Fluid Concentrate, Automotive Glass Cleaner, 8 oz, Makes 32 Gallons, Stain‑Free No Blue Marks, Heavy‑Duty Bug & Dirt Remover, Custom Mix for Summer & Winter Use
$23.09
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DU‑MOST Heavy Duty Windshield Washer Fluid Concentrate is a professional‑grade automotive glass cleaner designed for drivers who want clear visibility without streaks or residue. Its stain‑free formula cleans effectively while leaving no blue marks on windshields or vehicle surfaces, helping maintain a clean, polished appearance. Highly concentrated for efficiency, the compact 8 oz bottle makes up to 32 gallons of windshield washer fluid when diluted, offering exceptional value while reducing storage space and plastic waste.
Built for real‑world driving conditions, this heavy‑duty windshield washer fluid concentrate cuts through bug residue, road grime, dirt, and salt film to keep glass clear and visibility sharp. The formula is designed for custom mixing based on climate—use with water alone for warm‑weather cleaning, or add methanol separately for winter freeze protection according to recommended cold‑weather mixing ratios. A built‑in measuring reservoir makes dilution quick, accurate, and mess‑free. Whether you’re tackling summer bugs or winter road buildup, DU‑MOST delivers reliable cleaning performance with the flexibility to mix the right solution for your environment.
Package Dimensions : 6.02 x 3.58 x 1.61 inches; 9.59 ounces
Date First Available : October 30, 2023
Manufacturer : DU-MOST
ASIN : B0CM3WKWXT
Best Sellers Rank: #1,493,023 in Automotive (See Top 100 in Automotive) #242 in Windshield Washer Fluids #24,075 in Car Care
Customer Reviews: 3.6 3.6 out of 5 stars (31) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Stain‑Free Windshield Washer Fluid Concentrate: Advanced streak‑free formula leaves no blue residue or marks on glass or vehicle surfaces, unlike traditional blue windshield washer fluids.
Highly Concentrated & Cost Efficient: One 8 oz bottle makes up to 32 gallons of windshield washer fluid when diluted, reducing plastic waste, storage space, and cost.
Heavy‑Duty Bug, Dirt & Road Grime Removal: Powerful automotive glass cleaner removes bugs, dirt, road film, and grime for clear visibility and safer driving.
Custom Mix for Summer & Winter Conditions: Designed as a concentrated washer fluid—mix with water for warm weather or add methanol separately for winter freeze protection. Refer to recommended cold‑weather mixing ratios.
Easy‑Measure Concentrate Bottle: Built‑in measuring reservoir allows precise dilution for windshield washer fluid mixing with no mess or guesswork.
8 reviews for DU-MOST Windshield Washer Fluid Concentrate, Automotive Glass Cleaner, 8 oz, Makes 32 Gallons, Stain‑Free No Blue Marks, Heavy‑Duty Bug & Dirt Remover, Custom Mix for Summer & Winter Use
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$23.09
G. S. the old wizard –
This stuff really works!!
I got this windshield washer concentrate in the hopes it’d work at least as well as the premixed gallon jugs do. To my surprise, once mixed with pure water, it radically outperforms any washer fluid I’ve ever used, and I’ve tried a lot of them. Get some, you won’t be disappointed!!
Chris –
Freezes
Works ok but freezes.
T H –
Works well for cleaning the windshield; instructions are confusing
This concentrate makes for a good windshield fluid, which cleans as well if not better than the regular fluid I used to buy. A have used a one-gallon jug from washer fluid bought a while ago, and added one ounce of this concentrate – it’s almost summer, so no need for a higher concentration, and I cannot rate the antifreeze properties of this concentrate.The instructions on the back label are quite confusing: the rate of dilution table states “ounces methanol”, but the composition does not state “methanol”, but there is a kind of alcohol in the formula without any info on the percentage as there are also other substances. So, should the specified value for methanol be considered as total volume of this concentrate? Then the first rate of dilution, for temperatures in the twenties, calls for 9 ounces of this concentrate while the bottle has only 8 oz. Kind of weird, selling a bottle too small for even the lowest rate of dilution. And an order of magnitude more expensive than the store brand, pre-diluted.
Roberto Valmont Oliver –
Se congela por los 25 grado
Hice la medida exacta y no funciona se congela en 25 grado
Freelancepreneur –
Easy to store and works great!
This isn’t windshield wiper fluid but rather CONCENTRATE to make windshield wiper fluid and you pretty much mix in some of it into a jug of water and you’re ready to go to pour it in keep your windshield clean. As far as I have experienced this is pretty high-grade stuff and I have experienced absolutely ZERO issues. It is important to note that this is a concentrated formula so its very DANGEROUS to handle without protecting your skin so its recommended to wear gloves when handling it and prepping it to not get any on you at all.In regards to usage I would say this concentrate will last me nearly THREE YEARS from just this one container but for the average person that might drive more I would say you’ll get at least one to two years out of it if instructions are followed properly. Do note this is a VERY small bottle of concentrate so it can be quite easy to lose so that is something to most definitely keep in mind. This works like it is supposed to and I have had no issues with it.
Robert –
My car is covered for windshield washer fluid for life
This concentrate takes less space and in the long run will save me so much money. I just use my previous gallon bottle and just keep refilling that gallon bottle. Since this makes 32 gallons, this will last until my car can’t drive as a gallon, I don’t use that much to begin with.
K-cat –
Confused
I got this to replace some disappointing dissolving tablets I had gotten. They did not work in the winter. So, I am reading the back of this container getting ready to dilute it. On the back label there is a chart stating to add methanol to the mix for winter use. Not sure where I am going to get methanol and the chart doesn’t really have easy measurements to go with the product dilution. I am very confused. Right now, I am thinking this not the winter product I am looking for. I really like the concentrate idea, saves storage and I can recycle my jug. I like that it is a US product. That’s actually why I thought this one would work in the winter-made in Des Moines. They certainly have their share of cold weather. I just read some other reviews, so I am now realizing that this is a problem with the product label. I will probably hang on to this and when winter comes go over some reviews and see if there is more advice. Had high hopes for this one.
Customer Review –
Fine for warm weather, but no cost-savings during the winter
I bought this thinking I could save money on windshield washer fluid by mixing my own. It’s easy to do, since the bottle has a measuring spout built in. However, to make the washer fluid stay liquid in the winter, it needs to be mixed with methanol. To get fluid that will work down to -20F (what the all-season fluid is rated for in the store) you’ll need 44oz of methanol. The best price I can find is $20/gallon. All-season washer fluid is currently priced at $4/gallon in my area. So I don’t see any way to make this cheaper, other than mixing with water only…which means it can’t be used below 32F.