Seastoke
Well-Known Member
So I would like to change my coolant do you use any make or Volvo only if so what is the capacity and best place to buy ,thanks for info
Volvo D6 370HP coolant
- Thread starter Seastoke
- Start date
Anders_P42
Well-Known Member
I've stuck with Volvo as the change period is only every four years anyway.
Be aware there are two different coolant types that can't be mixed. If you're changing from one type to other I think you have to completely flush engine as I heard they react with each other.
Be aware there are two different coolant types that can't be mixed. If you're changing from one type to other I think you have to completely flush engine as I heard they react with each other.
volvopaul
Well-Known Member
Use only Volvo green coolant as it’s not just glycol and water it’s a proper mix that’s suited to the metals that the coolers are made of .
Seastoke
Well-Known Member
Thanks Paul so you buy it pre mixed ,roy
jimmy_the_builder
Well-Known Member
Isn't it every two years, rather than every four?
jimmy_the_builder
Well-Known Member
Iirc 16.5 litres per engine. Volvo only.
Andyroonot
Well-Known Member
2 years for green, 4 years for yellow
Seastoke
Well-Known Member
Where do you buy from ,I can find green for £17 for 5 litres is that good
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Anders_P42
Well-Known Member
Mine was changed this year, boat four years old. It has VCS yellow coolant, maybe it lasts longer
jimmy_the_builder
Well-Known Member
Thanks for the clarification - I have green.
JerryC
Well-Known Member
I would like to see a bit more scientific analysis contributed here, if anyone knows. I thought antifreeze was just glycol, diluted according to worst expected temps, but what do I know? For instance, are there different types which react differently between iron and aluminium? Posts #2 and #3 were just starting along the right direction, but then colour shades seemed to take over. More info please, experts.
Assassin
Well-Known Member
Very true Jerry, what people need to look at is the specifications as the colours are simply dye and you can get the same specifications of anti freeze in every colour of the rainbow.
Anti freeze is a slight misnomer as its main function is to prevent corrosion and its secondary function is to prevent freezing, and yes you are right if slightly misguided, anti freeze is more than glycol and it is designed and manufactured for "worst scenario" cases as concentrated is poured in and you have many types of tap water ranging from soft to hard which can be added, pre mixed anti freeze is little more than deionised water and concentrate mixed together and is more consistent in quality (and cheaper to produce) as they can use a lower standard of anti freeze in a consistent base of deionised water and you pay well over the odds for pre mixed when my last 25L drum of deionised water cost less than £4 per drum. These days we have a deionising machine fitted at work so I fill my drums up there for nothing.
In simple terms you get OAT which is organic additive technology and non OAT types such as the traditional Bluecol types and if you mix them together In quantity you get a jelly like substance in your cooling system which is a pig to remove and it may trash your engines in the process.
Next you get the OAT in different grades which is reflected in their specifications, their additives differ for different applications, OAT is generally tailored by its specifications in relation to its application and you get a specification for an engine with a cast iron block and an aluminium head, you will have a different grade for an all cast engine and a different grade for an all aluminium engine, and this factors in things such as rubber and plastic components fitted to the engine, any yellow metals used in bearings, pipes, or radiators to give its specification.
So, while this is simplistic, find the specification of your anti freeze and cross reference it between different manufacturers to find the equivalent specification in their ranges and you have a list of suitable alternatives which meet the specifications, with the savings on purchase price you can buy deionised water and use this to fill your system and get maximum life for the coolant.
Anti freeze is a slight misnomer as its main function is to prevent corrosion and its secondary function is to prevent freezing, and yes you are right if slightly misguided, anti freeze is more than glycol and it is designed and manufactured for "worst scenario" cases as concentrated is poured in and you have many types of tap water ranging from soft to hard which can be added, pre mixed anti freeze is little more than deionised water and concentrate mixed together and is more consistent in quality (and cheaper to produce) as they can use a lower standard of anti freeze in a consistent base of deionised water and you pay well over the odds for pre mixed when my last 25L drum of deionised water cost less than £4 per drum. These days we have a deionising machine fitted at work so I fill my drums up there for nothing.
In simple terms you get OAT which is organic additive technology and non OAT types such as the traditional Bluecol types and if you mix them together In quantity you get a jelly like substance in your cooling system which is a pig to remove and it may trash your engines in the process.
Next you get the OAT in different grades which is reflected in their specifications, their additives differ for different applications, OAT is generally tailored by its specifications in relation to its application and you get a specification for an engine with a cast iron block and an aluminium head, you will have a different grade for an all cast engine and a different grade for an all aluminium engine, and this factors in things such as rubber and plastic components fitted to the engine, any yellow metals used in bearings, pipes, or radiators to give its specification.
So, while this is simplistic, find the specification of your anti freeze and cross reference it between different manufacturers to find the equivalent specification in their ranges and you have a list of suitable alternatives which meet the specifications, with the savings on purchase price you can buy deionised water and use this to fill your system and get maximum life for the coolant.
