Jonathan writes:

Sajeev,

Our 2016 Passat (turbocharged 1.8-liter four-cylinder) appears to be losing coolant at the rate of a quart per year. We are driving the car only 5,500 miles per year in Chicago, so the coolant system isn’t under a whole lot of loan most of the year. I don’t have any spots on the garage floor under the engine, and the dealership checked for leaks and couldn’t find any.

The dealership did say that turbo engines are expected to eat some oil and coolant, and that there is nothing to worry about. Is that really a thing? I am very skeptical, but I know very little about maintaining engines with a turbo.

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