I have just found out what was causing my radiator hose to collapse. I thought it might be worth creating a new post for this as it is potentially a nasty problem if not caught early, particularly with Summer coming on
The pipe in the overflow bottle was blocked (SOLID). Couldnt suck anything through the pipe. This is a really bad thing as it will cause the car to overheat (QUICKLY). As the radiator cant suck water from the overflow bottle, it seems to cause a vacuum in the pipe between the radiator and the filler cap. This will stop (or severly curtail) the flow of water through the engine. Additionally, it will put a lot of load on the water pump.
Only takes a moment to check. If it can happen to me, it can happen to you.....
Overheating...
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- dstocks
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Overheating...
Complete FTO (http://www.completefto.com.au/completefto.asp) 
If you are trying to contact me and not getting a quick answer, its because im disorganised. Hassle me and ill get back to you

If you are trying to contact me and not getting a quick answer, its because im disorganised. Hassle me and ill get back to you
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Good stuff Dwayne, I go check after work
What I normally do during summer is get one of those slick50 or similar products for the engine, as it reduces the friction & protects it during hot weather. You will notice the temperature different, especially during traffic lights idle.
But the down side of any of these products are that they leave a residual after a while, as most of them are Teflon base and it can cause a problem if you don’t clean it up. So I flash the engine with those engine flush products after summer, & just run the car with normal engine oil until summer comes again.

What I normally do during summer is get one of those slick50 or similar products for the engine, as it reduces the friction & protects it during hot weather. You will notice the temperature different, especially during traffic lights idle.
But the down side of any of these products are that they leave a residual after a while, as most of them are Teflon base and it can cause a problem if you don’t clean it up. So I flash the engine with those engine flush products after summer, & just run the car with normal engine oil until summer comes again.
DISCLAIMER: The above text is the personal opinion of the author and does not represent the indisputable truth. The author is not responsible for any deaths, injuries or mental illness caused by the above statments.