Hi everyone, I hope that you be having a good day.
i recently bought a Subaru legacy 2009 2.5 in a dealership, my car comes with green coolant, the dealer told me that they make some work in the engine and I believe that part of that work was replace the coolant because the coolant is brand new.
probably you know that Subaru recommends uses blue coolant, me question is: must I change the green coolant for blue coolant or I’ll be fine with the green one? I read that the colors in the coolants make it differents but I don’t know if is a big deal or if I can keep my green coolant?
im trying to avoid the change because is a complicated process for me remove the coolant in the block engine, and I read in some forums of people that star to suffer head gaskets problem after a coolant change.
thank you for your help.
If that thing has the original head gaskets they're going to blow no matter what. Those engines are ticking time bombs. However the manufacturer-recommended coolant might help delay that from happening as long as possible.
Bear in mind that the color is just a dye. What you really want is the correct chemistry. You need to thoroughly flush out the cooling system before changing coolant type.
https://mechanicbase.com/engine/subaru-head-gasket-problems/
Do you know if is necessary remove the coolant from the engine block to change the coolant or just changing the coolant in the radiator is enough?
Yes, as I said the cooling system needs to be completely flushed of the old coolant if you change coolant chemistry.
Do you know if is necessary remove the coolant from the engine block to change the coolant or just changing the coolant in the radiator is enough? I’m looking for some tutorials to remove the coolant from the engine block but I didn’t find anything that can help me.
It's in there now. I would just leave it. Unless it looks sludgy, I don't think replacing it will make a difference.
