1.5L container. Pentosin G12 coolant is the OEM supplier to VW/Audi, and is designed specifically for your VW or Audi. It is also compatible in other applications where a pink G12 coolant is specified. Some coolant fun facts: G12 (pink) is used in most Audi/VW from late 1996 to 2009 G12 plus plus (pinkish-violet) is used in most Audi/VW 2009 and after. G12 plus has been discontinued and replaced by the latest G12 plus plus. Try to use what was specified or what matches the color in the tank, however G12 plus plus and G12 are miscible. Do not mix either coolant with green, blue, yellow or anything other than G12 and G12 plus plus as coolant system damage can occur. Check your manual, or on top of the coolant expansion tank as your specification should be stamped there. Contact us if you have any questions. Recommended mix is 1/1 with water.(Preferably distilled water, as tap water contains deposit forming minerals. CVS sells this in 1 gal. jugs) Lasts 5+ years. Consider adding a bottle of Redline Water Wetter for decreased temps.