Correct Antifreeze to Water Ratio

Woofstuff · 26-10-2011 03:16PM #1

Ok i got a garage to change the coolant with the stuff i bought. but now im not happy with the amount of antifreeze they used.. i thought a 50/50 mix was used....

According to the manual the car holds 4.2litres of coolant including 0.6 in the reserve tank...

Judging by the levels left in the 5litre containers they used about 1.2litres of antifreeze and 3 litres of the ionized water (photos below - taken on a shed shelf so should be level)

Thats a mixture of 28.6/71.4... 1.2litres/4.2litres total = 28.6%.... surely they should of used more antifreeze than this...

I didnt bother specifying a mixture when i left the car in as i assumed theyd get the mix right.

Now should i ring these guys or not? or could just add a bit of antifreeze?

IMG_20111026_145007 by woofstuff2, on Flickr

IMG_20111026_145034 by woofstuff2, on Flickr

Woofstuff · 26-10-2011 03:45PM

I put the antifreeze on the kitchen table and its suggests theres 3.6litres left in it,, so if they used 1.4litres of antifreeze thats a 33% mix 1.4/4.2

well i got this info from a brochure about the particular antifreeze i used

PROTECTION LEVELS / DILUTION CHART

Xstream® G48® (%) Approx. Protection (°C)
33%.........................-18C
50%........................ -36C
60%......................... -52C

So im guessing its fine since the lowest the lowest air temperature recorded was -19.1°C measured at Markree Castle, Co. Sligo on 16th January 1881 according to this site :pac: http://www.met.ie/climate/temperature.asp

so ive all this antifreeze left over... will it still be good when it comes to changing the coolant in 3years time or will i give it to someone else. (assuming i still have the car then haha)

It says shelf life of 5 years... but if you open the bottle does this change things??

Richie1991 · 26-10-2011 03:58PM

if you go to any garage they have a tool to suck the antifreeze from your car and it will show what degrees it can stand, 2 much anti freeze is bad

Woofstuff · 26-10-2011 07:07PM

Richie1991 wrote: »

if you go to any garage they have a tool to suck the antifreeze from your car and it will show what degrees it can stand, 2 much anti freeze is bad

why would 50% antifreeze be bad if the antifreeze manufacturer is giving guidlines up to 60% mix

Richie1991 · 26-10-2011 10:23PM

60% is probaly fine but it varies for different cars, i just ask a friend to test the mixture, mine can stand -30 degrees but anything more is bad for the car

Correct Antifreeze to Water Ratio

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