2014 Cadillac XTS Base 4dr Sedan Armored FWD
A: Coolant loss.?
They did pressure test it but did not find any leaks.
Mechanic Q: Coolant loss.?
My 2005 Buick LeSabre is losing coolant. There is no visible leak, there is none on the ground where I park and yet I'm using more than one quart per week. The engine oil is clear. Any idea where it's going?