Cooling SystemQuestionCommunity Starter

2023 Nissan Z — coolant slowly disappears without an obvious leak

TorqueFan276Community StarterMay 18, 20262023 Nissan Z PerformanceSan Antonio

2023 Nissan Z Performance, about 50,000 miles. The reservoir goes from full to low over several weeks. No puddle, oil looks normal, and I cannot find dried coolant around the hoses. Is a pressure test the next logical move? I am in San Antonio. I am trying to get the facts straight before spending money.

1 replies

BoostMiles438Community StarterCommunity StarterMay 18, 2026permalink

Start with the test that can prove you wrong. If a shop can't duplicate it on the 2023 Nissan Z, bring a video plus freeze-frame data, not just a story. You'll know quickly if you're on the wrong tree. Was this after sitting overnight? Video is ugly but it shows the hesitation.

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