Yes, long trips are generally much better for your car's long-term health than frequent short trips. During a long drive, the engine has sufficient time to reach and maintain its optimal operating temperature, which is crucial for several reasons. Firstly, it allows moisture and fuel contaminants that accumulate in the engine oil to evaporate, preventing sludge buildup and ensuring the oil lubricates effectively. Secondly, long highway drives allow the battery to reach a full state of charge, whereas short trips often drain more power for the start-up than the alternator can replace in a few minutes. Additionally, the exhaust system reaches high enough temperatures to burn off carbon deposits and moisture, reducing the risk of internal corrosion. A car with 100,000 miles of highway driving often has significantly less engine wear than one with 50,000 miles of short, "stop-and-go" city commutes, as it has undergone fewer "cold starts" and thermal expansion cycles.