Z32 VG30DE engine with OEM reservoir tank and Koyo TT radiator. Engine does not have any overheating issues, but has a problem to get the coolant back to radiator from the reservoir tank. The tube from the reservoir tank is not clogged. If I fill the radiator full, run the engine warm and let it cool down, the added coolant is in reservoir and radiator coolant level is down again. What where why? Thanks.
Follow Ups
Coolant doesn't run back to radiator? - Mika02:18:29 07/11/20