Antifreeze

Must say I still put IAT in the '98 Nissan 3.2TD import van. No doubt it'd be just fine on OAT and would last a lot longer - but it's a bit of a 'thing' within the JDM/import scene to run engines of that era on blue. In fact, some go out of their way to source the green stuff as they originally came with in/from Japan!
 
Hi, sorry I know this has been covered before but I'm still not clear if I've done the right thing..I have a 2005 VP D1-30, in my new to me boat. and when we had a frost I thought better change the coolant. Never given it much thought before on my 30 year old engine. Drained it all out and put halfords pink organic in but forgot that I now have a calorifier ,I did run the engine to get all the coolant out but maybe there is some left in the system! Question is was what was in there OAT or conventional coolant. It looked to have a green tinge to it. But it might not have been Volvo's own brand... how do you tell ? It says not to mix types. Is OAT used in 2005 engines. Shall I change it all again.

For man y years, I've syphoned out as much of this year's coolant and stored it for winterisation, topping back up with new pink better than 1;3 dilution Some of the old remains but that's no prob the new is doing all the work. Run teh engine a bit to circulate through the calorifier, before draining the calorifier for the winter.

The extracted coolant is made up to 10 litres and tipped into the water strainer when the engine is running ashore, then stopped as the level sinks in the strainer - filling the raw water circuit. Job done - all waterways now protected with AF

PWG
 
Its all ethylene glycol based

Their OAT type is red. Their conventional silicate type is blue
They also sell a nitrite, amine, phosphate free hybrid type

They also sell a range of l Comma antifreezes which includes a silicate type, an OAT type , a silicated OAT type, a hybrid type and a silicated OAT type based on ethylene glycol and glycerine
Yesterday, from curiosity, I had a look at a Halford's Ready Mixed Antifreeze container that my grandson had put in my recycling bin. It had no indication whatsoever, of the type of substance it had contained, just "ready-mixed antifreeze".
 
Yesterday, from curiosity, I had a look at a Halford's Ready Mixed Antifreeze container that my grandson had put in my recycling bin. It had no indication whatsoever, of the type of substance it had contained, just "ready-mixed antifreeze".
Both OAT and Silicate type Halfords antifreeze which I have state that they contain ethylene glycol in very small print in the "safety" panel on the back of the containers .

The safety data sheets confirm that all Halfords own brand antifreezes, including " hybrid NAP free" and " Halfords Essential", contain ethylene glycol.
 
It was only as I was driving home listening to the song Blinded by the light, singing and trying to remember the words, that it dawned on me, Ethylene glycol and Propylene glycol, why I just wrote glycol I have no idea!

I actually have an empty 1 litre bottle of bluecol in my old car.
Bluecol brand antifreezes are still available.
These days they offer a 5 year life OAT type , which is a fluorescent red, a conventional 2year life type , which is blue and a universal top up type suitable for mixing with either conventional or OAT types
 
If you pm me I can send you the Volvo official instructions and ratios but essentially:

- Empty the old coolant
- Fill with oxalic acid and run up to temperature; then drain off once cooled
- Fill with bicarb solution and run up to temperature; then drain off once cooled
- Flush two or three times with fresh water; run up and drain off each time. you can keep going until the water runs clear if you like.
- finally fill with the new coolant.

Hello, I would really like to have those ratios of oxalic acid and bicarb solution..
 
Top