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Best to Change Motor Oil in the Spring or Fall?
I have a 2007 Corvette and use Mobil 1. I typically change the oil in the spring, drive 3,000 miles during summer and then store it 4 months in winter. Question - would it be better to change the oil in the fall and store with new oil or continue with the spring change cycle?
-- James Muench, Urbandale, IA
We recommend that you continue to do what you are doing. During downtime in the winter, some moisture could be accumulating in the oil and since the car is not used and warmed up it would not be driven off. You can also accumulate moisture in the summer but we assume you are getting the engine hot and this will drive off the moisture.