Hi

Technical answer....there are 2 types....
Type 1 = ethylene glycol based...BEST TYPE ...MIX 50/50 WITH WATER and will protect to over 30 degrees below and also protect all ally parts in your engine......keep it at 50/50 ALL YEAR ROUND...
Type 2 = Methanol based.....utter crap , but cheap...the reason its crap is that methanol EVAPORATES when warm......think about where it goes lol...NEVER use it...
READ labels it will say WHICH its based on....but the proper stuff will be more expensive anyway...
Colour does NOT matter....they can be mixed as long as correct type...
All the best Brett
