Lidl Screenwash Alternatives?

GwylimT

sillygoose wrote: »

So how does a fan make a CPU heatsink cooler? and the hotter it gets the more the PC speeds the fan up and hence the 'wind' up to keep it from getting too hot.

I thought the outside temperature sensor on a car is put in a sheltered position so doesn't get wind cooled.

It doesn't make it cooler than room temperature, the movement of air simply increases the movement of heat away from the CPU.

GabbaGabbaHey

AdrianC wrote: »

Which is precisely why very few washer jets have been exposed for the last couple of decades. They're usually tucked out of the airflow (although it's a low-pressure area anyway), and are quite often exposed to warm air escaping from under the bonnet.

Or, as is the case on at least one of my cars, are electrically heated.

Head_The_Ball

sillygoose wrote: »

So how does a fan make a CPU heatsink cooler? and the hotter it gets the more the PC speeds the fan up and hence the 'wind' up to keep it from getting too hot..

Heat energy transfers from the relatively hot surface of the heatsink into the relatively cool surrounding air. The larger the temperature difference (temperature gradient) between the surface of the heatsink and the air, the more heat energy is transferred.

The fan continually moves air around the heatsink to maintain the maximum temperature gradient between the hot heatsink and the cooler air.

If the air around the heatsink didn't move it would gradually warm up and reduce the temperature gradient. It would still cool the heatsink but nowhere near as effectively as moving air.

Without a fan, cooling would rely on natural convection air currents moving hotter air away from the heatsink to be replaced by cooler air and that is not normally sufficient to produce sufficient cooling.

Do you blow on a spoonful of hot soup to cool it down? Do you sit in front of a fan to cool down on hot weather? The soup and your body cool down faster in moving air.

robatwork

As this is MSE......

I recently tried Poundland's 5l which is yellow. You can guess the price.

Hasn't frozen yet, and in the S of England where I am it's hugely unlikely to get below -5 now so seems a pointless waste of money buying something rated for arctic conditions.

I'm sure MSEers in the N of Scotland would be wise to try a different unicorn.

stator

Is Tesco Extreme Screenwash any good?
£1.75 per litre rated to -20c

AdrianC

One top screenwash tip from this weekend...

If there are two plastic bottles of bluey goop next to each other, MAKE SURE YOU DON'T PICK UP THE ONE OF COOLANT AND TIP A LITRE INTO THE WASHER BOTTLE.

This has been a public service announcement...

Zola.

Fairy liquid, water

karlfoley

B&M have 5L of RAC concentrated screen wash (-15C neat) for £2.99.
Contains Bitrex so should be kid and pet safe.

photome

karlfoley wrote: »

B&M have 5L of RAC concentrated screen wash (-15C neat) for £2.99.
Contains Bitrex so should be kid and pet safe.

is it any good

photome

Zola. wrote: »

Fairy liquid, water

If you’re tempted to squirt a few drops of washing up liquid into your car’s screen wash reservoir, we wouldn’t recommend doing so. While household cleaners are great for cleaning up dirt and grime around the home, they’re not fit for use on cars, and contain harsh chemicals which can damage paintwork and other metallic surfaces. Not only that, but household cleaning products offer zero protection against freezing, leaving you in a right old mess when the temperature drops.