| Exerpt from a letter to various Miata aquaintences... |
| . |
| I don't know if you have ever come across this situation
before but I thought I should share the information I received from the
technicians at Red Line Synthetic Oil Corporation regarding my recent experience
with their Water Wetter product.
It seems that if the PH of your coolant mix is too low the silicates in their product can come out of solution. In my case this manifested itself in the form of pea sized gelatinous globules forming in the coolant mix. These globules eventually float to the surface forming a thick scum. Fortunately, as I pre mix my coolant solution, this did not occur within the radiator. I can only imagine that flushing the gelatinous scum out of the cooling system would be quite a tedious chore, to say the least. The mix I was using at the time this occurred was as follows... 1½ Gallons Prestone Ethylene Glycol Anti-freeze
The technicians at Redline suggested that the 50/50 mix is what caused the PH to drop too low and that using a lower percentage of anti-freeze and the minimum amount of Water Wetter in the mix should alleviate the problem. FYI, changing the concentration of the mix after the fact did not bring the silicates back into solution. |