Does it have to be volvo green coolant or can i use any other??

[Ian MacAulay]

As above really ... as you may of seen in my other post i have a over heating engine so I'm going to flush and change coolant along with thermostats on my AD41's. Can i use any green coolant or has it go to be volvo type 90 stuff?

was also going to try to flush sea water side some how by keeping in situ, anyone any ideas and tips for this?.. I was thinking along the lines of taking hose of exhaust bend and other off raw water pump and hosing through then with a funnel adding some sort of flush additive and leaving for some time


Ian

 

[dpb]

AFAIK you can use any kind as long as you don't mix them.
I buy 20 liter tubs on line of the blue stuff.
The difference is in the corrosion inhibitors.
Blue as 2 year life
Pink I think is 5 and then there are other newer types!

 

[VicS]

As above really ... as you may of seen in my other post i have a over heating engine so I'm going to flush and change coolant along with thermostats on my AD41's. Can i use any green coolant or has it go to be volvo type 90 stuff?

was also going to try to flush sea water side some how by keeping in situ, anyone any ideas and tips for this?.. I was thinking along the lines of taking hose of exhaust bend and other off raw water pump and hosing through then with a funnel adding some sort of flush additive and leaving for some time


Ian

There are basically two main types of antifreeze.

The standard or conventional type which uses a "low silicate" type of inhibitor . This is the Volvo Penta Green antifreeze and is the one generally specified for older engines

and

The "Advanced" , or "Longlife" type which uses an "Organic Acid Technology" (OAT) inhibitor. This is the Volvo Penta "yellow" antifreeze and is specified for some more recent engines.

The Antifreeze specified for AD41s is the VP Green , conventional , low silicate type.

Any conventional automotive antifreeze sold for older engines will be perfectly satisfactory.

Eg Halfords Silicate Antifreeze and Coolant http://www.halfords.com/motoring/en...ords-silicate-antifreeze-concentrate-2-litres


Note that if your water hardness is high or the TDS exceeds a certain figure VP usually recommend using distilled or deionised water for dilution. See your manual for details. Alternatively of course simply buy it ready diluted.

There are no standards for the colours of antifreezes .... so ignore the colour and read the written description on the label!

Do not mix conventional and OAT types.

 

[Ian MacAulay]

Thanks very much for the answers. I will go local motosprares shop and get then. I keep marine aquarium so I was going to use purificated water with a TDS reading of around 0-2 ppm as my tap water averages around 500-600ppm

I'm going to flush it a couple of times first and use a internal coolant system cleaner first so the new stuff has the best start in life.

Any good ideas for the raw water side of cleaning?

Thanks

Ian

 

[gordmac]

You could try filling it up with some sort of lime scale remover and leaving it to stop fizzing before running the engine to flush out. Have done this on an overheating Volvo with some success but I can't remember the household product we used.

 

[GrahamHR]

Incredible the lack of a factory raw water flush system for the European sourced Volvo Penta diesels, even as an aftermarket expensive kit, Standard on Volvo Penta USA sourced petrol engines since ca 2002. Very easy to make and cheap to fit one ( as I did to my 2009 D4-300).

 

[lynall]

Ive seen conventional and oats stuff mixed many time's with no issue's, not saying it's right but I think it's just another old wife's tale like mineral oil and syn oils.

 

[Momac]

As said - you must not use the OAT type of coolant - commonly coloured red- as I believe there may be some metals in the AD41 and other similar engine cooling system which which OAT it is not compatible.
I have topped up small quantities on my similar VP engines with some blue coloured type of antifreeze ,sold as universal and purchased in a small bottle cheaply . But perhaps for a full engine coolant change the best plan would be to buy the VP branded coolant if it is not prohibitively expensive.

I have in the past , back flushed old car engine cooling systems, with mains water / hosepipe .

While you are at it you should look for any bits of broken off impeller that might be restricting the flow - maybe you already did that.

 

[bigwow]

You could try filling it up with some sort of lime scale remover and leaving it to stop fizzing before running the engine to flush out. Have done this on an overheating Volvo with some success but I can't remember the household product we used.

I've used brick cleaner from B&Q for this job

 

[Plum]

There are basically two main types of antifreeze.

The standard or conventional type which uses a "low silicate" type of inhibitor . This is the Volvo Penta Green antifreeze and is the one generally specified for older engines

and

The "Advanced" , or "Longlife" type which uses an "Organic Acid Technology" (OAT) inhibitor. This is the Volvo Penta "yellow" antifreeze and is specified for some more recent engines.

The Antifreeze specified for AD41s is the VP Green , conventional , low silicate type.

Any conventional automotive antifreeze sold for older engines will be perfectly satisfactory.

Eg Halfords Silicate Antifreeze and Coolant http://www.halfords.com/motoring/en...ords-silicate-antifreeze-concentrate-2-litres


Note that if your water hardness is high or the TDS exceeds a certain figure VP usually recommend using distilled or deionised water for dilution. See your manual for details. Alternatively of course simply buy it ready diluted.

There are no standards for the colours of antifreezes .... so ignore the colour and read the written description on the label!

Do not mix conventional and OAT types.

I am all in favour of finding alternative brands at cheeper prices but in the case of the halfords coolant mentioned above it is not cheeper than the Volvo Penta green coolant. The VP stuff is £14 for 5 litres ready diluted (I assume to 2:1) and the Halfords stuff is £12 for 2 lites of concentrated.

Colin. Www.solocoastalsailing.co.UK