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Originally Posted by mptoledo
Here is the question, Do you change it before or after winter(in cold climates)?
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It should always be changed right before being stored, so it would be done in the winter. There's no need to change it again in the spring, simply from the fact that the new oil poured in has 100% of its acid neutralizing properties, and since there isn't any combustion events occurring when the engine isn't running, the oil isn't having any new acids being produced to cope with.
Basically, the last drive in the winter should look like this:
Take car to shop and have oil change performed.
Drive car home.
Put car in garage.
Pop hood, and hook up the battery tender.
Turn out lights, and lock garage.
BC.