G30 coolant mix? - Alfa Romeo Forum
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(Post Link) post #1 of 8 Old 29-09-15 Thread Starter
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G30 coolant mix?

Hi guys.
Many thanks first of for the great tutorial on changing out the thermostat. Almost done! Was about to refil the reservoir on my 2000 reg 156 TS when it occurred to me..will the new G30 coolant be OK in there with the remnants of the previous coolant?

Hope someone gets this soon...job on hold!

Cheers

Matt
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Think that vintage uses BLUE Silicate coolant (mines 1998 and uses OAT) and no it shouldn't be mixed but getting all the old stuff out is almost impossible without taking the engine out

Last edited by gazza82; 30-09-15 at 13:50. Reason: corrected typo
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Quote:
Originally Posted by gazza82 View Post
....and no it shouldn't be mixed but getting all the old stuff out is almost impossible without taking the engine out
Just run clean water through it couple of times to clean out the old stuff, easy ....
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(Post Link) post #4 of 8 Old 05-10-15 Thread Starter
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Originally Posted by gazza82 View Post
Think that vintage uses BLUE Silicate coolant
It was the red/pink stuff already in there. I was concerned as the new was very pink. I mixed some in a glass - and while there wasn't the temperature conditions there didn't appear to be any obvious separation.

Had to just go with my gut on this - and it all appears to be ok! Temp now runs up to 90 and hovers around there. Very pleased with myself. A massive thanks to AO
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Do you mean G30 or G13

G13 is the current VW spec and mixes with anything that went before it.
G13 is purple
G12, G12+ and G12++ are red
G11 was blue

G30 ???
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Basf g30

http://www.glysantin.de/en/products/g30.html

it's the technology used in current radiator fills for alfa/fiat
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Coolant change

All coolants are same but only the company's name differ. If you are filling fresh coolant then the remnants of the previous coolants is required to be removed.
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Quote:
Originally Posted by davidjones View Post
All coolants are same but only the company's name differ.
Coolants are not all the same, far from it.
Some are completely incompatible.
Nothing to do with who makes or markets it.
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