You must factor in the partial cleaning of the cooling/heating system.

 

2 hours ago, nta16 said:

You must factor in the partial cleaning of the cooling/heating system.

 

 

For sure that helped a lot, all these residues from 24 years of use (and all these additives) made the situation worst but if few weeks i have a summer trip (vacations) and then will see what the G12 does in hot days compared to G11.

I should have made a coolant flush and maybe the consistent use of G11 all these years wasn't the best idea.

If you haven't cleaned/flushed the coolant/heating system in 24 years and mixed in additional additive(s) in that time then the cleaning alone could have made almost all or perhaps all of any difference.

 

Changing the coolant every two years then that's at least 12 lots of coolant residue and debris left in from each change,

 

My mistake all these years with the additives, won't happen again.

11 hours ago, D.FYLAKTOS said:

My mistake all these years with the additives, won't happen again.

GUESS WHO HAS SAID THAT 1 GAZILLION TIMES 

5 years or 50k miles no point messing with it.

There is an old saying, if it's not broken don't fix it. Or else you can find yourself causing problems that weren't there to start with.

3 hours ago, Thefeliciahacker said:

1 GAZILLION TIMES 

You must have been told a million times about exaggerating. 😆

 

1 hour ago, Blue8793841 said:

5 years or 50k miles no point messing with it.

It wasn't 5 years for the coolant in the car 24 years ago.

 

1 hour ago, Blue8793841 said:

There is an old saying, if it's not broken don't fix it. Or else you can find yourself causing problems that weren't there to start with.

That is very true very often but there's also "prevention is better than cure" which relates to some extent to what has been done with the frequent coolant changes but not the other stuff.

 

There again D.FYLAKTOS has owned and kept the same car going 24 years, I barely used to keep a car 24 months (or a lot less) and it'll be very interesting (and amazing) if a 2020 car is used and (able to be) kept to 2044, very amazing with a modern VW product.  I couldn't imagine when I got my driving licence that I needed worry about it lasting until 2030, next century/millennium back then!  Perhaps I might still be around in 2044, perhaps things might be better then, or I still wish I was born 10 years sooner.

 

11 hours ago, Blue8793841 said:

5 years or 50k miles no point messing with it.

 

I will keep it 4-5 years maximum.

I am in the middle of my vacations, with high summer temperatures here the G12 goes very well, no overheating or any alarming indication.

Comparing to G11 i can not say that there is some sort if "huge" improvement but i thing it's one click better in "temperature recall" ,i mean when the coolant returns to normal operating temperatures before reaches the limit where the radiator fan start spinning.

I think this will reflected in fuel consumption, we will see soon..

Part or all of this might be down to you cleaning the cooling/heating system.

 

I would like the colour to be more red than now which looks like pink (one click darker).

With the old G11 (blue) the level line was vey distinguive, now every time i had to get very close to see, i will throw some coloring matter inside. 😁

3 minutes ago, D.FYLAKTOS said:

I would like the colour to be more red than now which looks like pink (one click darker).

Isn't that to do with the dilution ratio you chose.  As I remember it G12 is pink but men often have some level of colour blindness.

 

5 minutes ago, D.FYLAKTOS said:

i will throw some coloring matter inside. 😁

I think you've had enough of mixing liquids in your coolant.  😉 😆

 

Put something behind the the tank to give more contrast, hand, glove, sleeve, hat, scarf, tool roll, shadow, sunlight, whatever works.

 

4 hours ago, nta16 said:

Isn't that to do with the dilution ratio you chose.

 

I am in 45% ,for first time so hi, i was in 25% with G11 but now i change it and in winter i will know if i was right ir wrong.

Edited 9 July, 20241 yr by D.FYLAKTOS

2 hours ago, D.FYLAKTOS said:

am in 45% ,for first time so hi, i was in 25% with G11

Sorry my bad memory I thought it was 25% or 35%.  All else fails you can take the cap off and look inside.

 

1 hour ago, nta16 said:

 you can take the cap off and look inside.

 

 

I will post some photos There when i return, let's hope that i wouldn't find any signs of muck.

35 minutes ago, D.FYLAKTOS said:

let's hope that i wouldn't find any signs of muck

If you do just live with it until your next regular coolant change as your coolant temperatures have been good then at next regular change so the clean again.

 

Why couldn't you have done the more thorough cleaning I put up for someone else now for yourself, whilst you were back home on vacation and not working on a city street?

 

Yes some of us use that for illustration, still relevant with  D.FYLAKTOS's coolant choices but unfortunately it's out of date with the ever changing German engineers' thoughts on coolants.  Just in case you thought otherwise D.FYLAKTOS isn't mixing G12 with G11.

 

Sorry I meant to put the later image up. Must be on my other phone. There is also warnings on coolant concentration which @D.FYLAKTOS may be interested in.

If you've got a later one with the confusing G12evo (after G13) and info on dilution I'd be pleased to add it to my small library.

 

Below is another, less clear and distinctive, chart for the G number coolants with more VW numbers included but again only goes to G13.  From G12+ to G13 it shows the colour as violet which to me is a purple colour but the VW G12evo I have is more of a pinkish colour - but you never buy coolant by colour as there's not any standardisation really to the colours from the various manufacturers. 

 

ALLDATA Vehicle Information.PDF

Don't think the recommended concentration is listed, maybe that's in the vehicle workshop manual.

Thanks for those.  The G12 clearly looks pink to my eyes in that photo on my screen, not red.