G12 Plus Plus Coolant

I know that the regular pink Pentosin coolant is mixed 50/50 with water. But how is the G12 Plus Plus Coolant mixed? I've got a 2001 Golf and a 2003 Jetta wagon.

http://www.idparts.com/catalog/product_info.php?cPath=25_178&products_id=1089

Thanks.

I seem to recall that the label on the side of the bottle is a multi leaf instruction book. You will find the info there.

Bill

In general, all coolants are glycol based and are diluted usually to 50-50 in normal use and normal climates. Up here, if we had a seriously cold winter, 60-40 (coolant to water) might be in order. Usually 50-50 gives the best heat exchange and freeze or boil protection compromise.

1:1 with distilled water is fine for most climates unless you need to run your TDI in -20ºF conditions. The bottle does have a table that lists 3 different mixing ratios with effective temperature ranges for each.

Powder Hound said:

In general, all coolants are glycol based and are diluted usually to 50-50 in normal use and normal climates. Up here, if we had a seriously cold winter, 60-40 (coolant to water) might be in order. Usually 50-50 gives the best heat exchange and freeze or boil protection compromise.

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gallaj01 said:

1:1 with distilled water is fine for most climates unless you need to run your TDI in -20ºF conditions. The bottle does have a table that lists 3 different mixing ratios with effective temperature ranges for each.

Click to expand...

IIRC, the original red G12 stuff (not G12+ or G12++) listed 70% coolant to 30% water for best performance in the coldest AND hottest conditions. The hot and cold temps were listed for a 70/30 concentration. The temps for 60/40 and 50/50 concentrations were also listed.

The 70/30 concentration allowed you to add just water if necessary to make up for evaporation or a leak and not disturb the ratio much. If you added more water than you should have, the 70/30 concentration would be diluted to somewhere around 60/40 or 50/50 and still be OK for warm and cold conditions.