It means that your engine oil is mixing in with your radiator fluid. You probably have water in your oil too. I would take it in and have it fixed.
Red, Orange, or Yellow, I think...
you use green antifreeze not orange// orange in GM only do not use orange .......
that you have to ware green or orange clothes
Rust, It is time for a coolant flush.
paint it lemon instead of orange
Same as in English, "orange". The a is nasal instead of open, though.
The yellow star is hotter.
yes, they are. here are the flame colors in order from hottest to coolest. white - hottest blue - hotter yellow - hot orange - cooler than yellow red - cooler than all of above
Yes. Only if you grade it.