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Message: <blockquote data-quote="t2ribena" data-source="post: 380980" data-attributes="member: 3847">was discussing this with a fellow member who did a research on coolant for our cars and... our OEM BMW coolant is of type G48 which is normally blue'ish green in colour...if not mistaken this G48 coolant was a product by BASF which is marketed under their Glysantin trademark...the main diff to the G05 coolant is that it contains no nitrite...G05 coolant (yellow) is normally used for diesel or heavy duty engines...both contains organic acid as bro jarance expained above...G48's PH level is around 7 and G05 is at low 6 which makes it more acidic in nature... G48 has a slightly higher boiling point than G05 but this depends on the mix...normally for our weather if not mistaken 50-50 mix with water. IMHO better dun put those coolant from Jap maker as it normally not suitable for european engines in terms of material used and how they cool the engine. Normally jap engine coolant contains silicate and phosphate...</blockquote>