Do I need to add coolant

Asleep_Eye_74B to Mechanic Advice@gearhead.townEnglish · 1 year ago

Really dumb question - I opened the radiator cap of a Subaru Outback to make sure there was no oil in the coolant (looking for signs of head gasket fail) the engine had been on shortly 5 min before but it was cool to the touch. When I opened the cap. The back pressure pushed out just a little coolant. I would estimate like 1/3 cup or less. Do I need to go add coolant or what is like the tolerance on coolant loss. I think it’s fine but better safe than sorry

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