Quote Originally Posted by youngrider View Post
One time nag top ako ng orange coolant sa green coolant, ayun nagkaroon ng gelling.

As a precaution I do not mix two different brands of coolant.
The new orange, red, and blue coolants are not compatible with common green and yellow coolants. Actually, they're not compatible with each other. We should only top-up with same color/type coolant.

Alternatively, if you really want to use the new coolant, the old coolant should be flushed and thoroughly replaced with the new coolant.

One last bit of info, newer red or orange coolants are usually for aluminum type radiators only. They'll damage copper and brass radiators.