I have a 2008 Volvo XC90 3.2 and the coolant reservoir was full of oil sludge.
A couple of weeks ago I replace the Water to Oil cooler because it was cracked and it was allowing oil to pass to the cooling system.
We flush with water all the cooling system until clear water come out from the radiator.
A week later there is still a little oil floating in the water and grease stuck to the walls of the coolant reservoir. Check my pic.
I have flush again with water, but there is still oil floating and also is sticking to the walls of the coolant reservoir
I want to clean the entire system very well, before adding the coolant.
I have read that many people use liquid dishwasher to clean up the remaining oil residue.
How many ounces of liquid dishwasher should I add to the coolant reservoir to completely clean the residual oil that remains in the cooling system?
Thx for your time and help
IsaacOil grease stuck to the walls of the coolant reservoir
Cleaned after the water flush