Rain-X Concentrated Screenwash with Rain Repellent - Superior Visibility & Protection for All Seasons - Prevents Freezing Down to -15°C - Streak-Free & Water-Repellent Formula - 5LCompact by Design (Certified by Amazon)

Bought this based on the reviews and have not been disappointed. It suddenly rained hard for a few minutes whilst I was on the motorway and I didn't have to use my wipers as the rain just bobbled and ran straight off the windscreen with no loss in visibility. It didn't freeze in the recent cold weather (-8°c) and it cleans to a crystal clear finish.I am very happy with it. It is currently not diluted due to being winter but the bottle has clear and easy to understand instructions for how to use it throughout the different seasons. I certainly won't be returning to the cheap stuff I used to get.

Great screen wash, no streaks and keeps the rain flow consistent. Does not wear out as much as you expect after spraying and wipers used

Good screenwash

arrived on time - seems to be a good product

Good stuff lasts a long time smells good good quality

It has fairly good hydrophobic properties (i.e. the rain does run off quite well) but it's actual cleaning ability is not that great - I prefer a windscreen wash that gets the bugs and grime off.

I buy this all the time it's brilliant but you have to put it in to the correct strength, the rain literally runs off the screen and you hardly have to turn your wipers on, it also makes it easier to clean the bug's off the screen they don't seem to stick on so hard.

Great value concentrated screenwash, can really notice the rain repellance.