So, what actually DOES clean the inside of the windscreen ?

[Brian Lacey]

The sun shines and the inside of the windscreen is STILL smeared !!! (expletive).
I have tried..., house window cleaner, kitchen surface cleaner, chamois leather, vinegar, proprietary windscreen cleaner, nail polish remover, neat windscreen wash concentrate just to list a few. ...... and it is still smeary in the sunlight.
It does not help that it slopes away and the dash top is long and broad so getting a good, even hand pressure to clean is not easy but even so .......
So what am I doing wrong ? How do I clean the smears that seem totally resistant to everything ?
Thanks
Brian.

[take-good-care-of-the-forest-dewey]

KARCHER window vac.

[TheLuke]

Little dab of grease on a cloth, small as possible.

Trust me.

[Dixy]

You need more than just solvent, I use cheap window cleaner with fine wire wool, then polish with a clean cloth.

[HustleRussell]

IME people tend to use too much product and get it too wet. Cleaning the inside of the screen is more like polishing; a little product and a lot of elbow grease. I can get mine perfect with vinegar or vinegar based glass cleaner and kitchen towel.

[anonymous-user]

99% IPA mixed with distilled water 50/50. Spray on, wipe with paper roll and buff with more paper roll.

[RicksAlfas]

Autoglym Car Glass Polish.
(Not the squirty stuff).

[take-good-care-of-the-forest-dewey]

TheLuke said:

Little dab of grease on a cloth, small as possible.

Trust me.

[BuzzBravado]

take-good-care-of-the-forest-dewey said:

KARCHER window vac.

On a concave screen? Sounds like a pain in the arse.

[57Ford]

BuzzBravado said:

take-good-care-of-the-forest-dewey said:

KARCHER window vac.

On a concave screen? Sounds like a pain in the arse.

And it’s supposed to be upright so would probably drip all over your dash.

[CraigyMc]

flashbang said:

99% IPA mixed with distilled water 50/50. Spray on, wipe with paper roll and buff with more paper roll.

My car now smells of beer.

[av185]

Whatever you use don't clean it in sunlight.

[Swervin_Mervin]

A clean, dry microfibre, and no product at all. It's like nails down a blackboard, and needs some elbow grease, but it works every time. I use both inside and out

[Sheepshanks]

RicksAlfas said:

Autoglym Car Glass Polish.
(Not the squirty stuff).

Seconded.

Don't use too much or it gets powdery. And don't use a tea-towel etc that's been washed with fabric conditioner.

[take-good-care-of-the-forest-dewey]

57Ford said:

And it’s supposed to be upright so would probably drip all over your dash.

No and no. Maybe the odd drip but nothing damaging.

Worked my OH's c class - very raked screen - and on my dog chariot CRV.

Clean streak free glass.

[ajap1979]

Newspaper. Honestly, try it.

[HappyMidget]

ajap1979 said:

Newspaper. Honestly, try it.

Yup, used with any cheap glass spray. Was the only way to pass bathroom when I was in basic training..

[CarCrazyDad]

https://www.youtube.com/watch?v=O_S5u0uHzlk

This is a good tip

For me I sit in passenger seat with 2 Microfiber towels and some glass cleaner (I like Autoglym Fast Glass)
Spray glass cleaner onto 1 towel directly, flip my hand backwards so to speak, clean the whole windscreen

Use the second towel to go over and effectively dry

I don't let the towels touch the dash and I keep them folded into a square for ease of use.

Perfect 99% of the time, sometimes there is a bit you missed

[dxg]

Sheepshanks said:

RicksAlfas said:

Autoglym Car Glass Polish.
(Not the squirty stuff).

Seconded.

Don't use too much or it gets powdery. And don't use a tea-towel etc that's been washed with fabric conditioner.

Thirded. Interesting smell.

[sean ie3]

When I was a kid I used to clean Taxis on a Saturday morning, what with the drivers living in the car, breathing, smoking etc. the screens were dirty to say the least I used to use an AutoSmart product much like Windolene or the AutoGlym product mentioned in another post. Clean windscreen every time. The dust didn't matter as the cars were being hoovered anyway.