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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Incorrect Antifreeze - To Stick or To Change!Views : 1126 Replies : 19Users Viewing This Thread : |
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Jul 27th, 2020, 12:25 | #11 | |
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Volvo Coolant is the only coolant adapted for and approved by Volvo and ensures continual good performance from the cooling system. The product gives very good protection against corrosion and is particularly kind to light-metal alloys inside the engine. Does not contain nitrites, amines or phosphates. The various part numbers contain the same product and the packaging is adapted to suit the requirements of different markets. The bottles are equipped with child-resistant caps. Contains ethylene glycol, inhibitors and denaturant. Coolant in drums should be ordered by the litre. Technical data Colour: Blue Density at 20 °C: 1.12 g/cm³ Viscosity at 20 °C: 24 to 28 mm²/s Boiling point: min. +165 °C pH: 7 to 7.5 Maximum antifreeze protection: -51 °C (104°F)
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Jul 27th, 2020, 16:10 | #12 |
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@Clan: Many thanks and appreciate your response!
I have already procured the heater core / heat exchanged for which, due to cost I opted for a German BEHR at about 1/4 the price of OE Volvo - now branded Mahle Behr #AH106000P (8FH 351 311-751) as Mahle have bought out Hella's share. I am led to believe that Behr were OE suppliers to Volvo (for the 850 / V70) in the first place... 'O' rings and coolant on order at my Volvo Parts Counter. 25 litres of deionised water for flushing en-route! Thanks for the Volvo Tech. spec. - however this changing of colours across manufacturers and brands is extremely and unnecessarily 'confusing' - hence my original dillema. Didn't Volvo coolant used to be green? If it really is 'never needs changing' (great) then although Ethylene Glycol based, it sounds more like HOAT than IAT ? Kind Regards, RB |
Jul 27th, 2020, 16:17 | #13 | |
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I have been using it in all my cars since the 70's I dont take any notice of other coolant .. My 1988 343 still has the original green type .. still strong down to -37C and clear as the day it was added in the factory
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Jul 27th, 2020, 16:50 | #14 |
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Not sure whether this is classed as green or blue (it looks more green to me) but only a couple of months old and genuine Volvo so make up your own mind
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Jul 27th, 2020, 17:32 | #15 |
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@ 4x4: It looks green to me. Thanks for your help.
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Jul 27th, 2020, 17:39 | #16 | |
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The concentrated coolant is never truly neat in the system so will cause no issues and is the best way to guarantee a 50/50 mix. For reference, this is my coolant 5 years after using my regular method and no top ups have ever been needed. Putting 50/50 premix coolant into an "empty" system which actually contains a quantity of water means that your final mix will be diluted to less than 50/50.
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Jul 27th, 2020, 18:30 | #17 |
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Check your owner's manual for the cooling capacity then before you refill for the final time after flushing put 50% of what the manual states into the cooling system and top off with distilled or deionised water
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Jul 28th, 2020, 08:56 | #18 |
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@Cheshired5: That is mightily clean antifreeze / coolant. I have the OE Volvo Ready Mix coolant on order my Volvo Trade Counter, together with OE 'O' rings (back-order) for the heater pipes to heater core / heat exchanger on order.
My Volvo dealer gave the part number for the coolant (# V31439724 : 4 litres ready mixed) which is what THEY use in their accredited workshops. I do take your point about the different fill methods and you are, of course, correct. For myself I still would not put 50% neat antifreeze into especially an old system even if mathematically correct. A 50% mix antifreeze to deionised water ratio will take the frost protection to way below what we will ever see in the UK, so if the final mix ends up being a fraction less I don't see it as significant. I have tended to run on a 33% mix ratio anyway - which IF it is Dex-Cool filled in my car, might prove to be to my advantage - less Dex-Cool! I am sceptical about 'never having to change antifreeze' - even if topped up with neat antifreeze occasionally and the specific gravity measured with a hydrometer for frost level protection. The additives that provide the anti-corrosion, deteriorate and can even be 'sacrificial' as they perform their chemical magic with the alloys of the engine. So it could be possible to have coolant that still protects against frost but has weakened anti-corrosion capabilities. There is normally a specification for longevity between coolant changes written on the coolant packaging - I shall be interested to see what OE Volvo specifies ... All that noted though, you have very clear coolant! I look forward to getting mine done as my Volvo is VOR (Vehicle Off Road) - I dare not risk using it. Will let you all know how it goes when I do the job after the parts arrive. Thank you all for you kind and greatly appreciated help! RB |
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Jul 28th, 2020, 10:01 | #19 | |
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Have no worries whatsover about the life of volvo coolant , trust me i have been using it in all sorts of cars from the 1970's .. It keeps its -37 C freezing rating and the corrosion inhibitors stay in grade . That's why i said its the very best quality and the most economic to buy .
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