DRM
Guru
- Location
- West Yorks
Make sure you don’t mix coolant types, if you do certain combinations react and turn to gel, I would flush the whole lot out with a hose, as you don’t know what has been put in in the past, iirc green is the stuff for older cars.Now I'm not 100%, but pretty sure Volvo coolant is green, not brown like hot chocolateHad an hour on the 'R' this afternoon and drained the coolant, did one flush and then filled with leftover unbranded coolant. Radiator hose coolant drop only gets rid of about 50% on the 7 litre capacity, and no time for doing the block drain too. Had to play safe and get some antifreeze in for the next few nights of cold weather.
https://mechanicbase.com/coolant/mix-different-anti-freeze/