It is always a good idea to leave it on. It helps you on low traction situations such as snow, ice and mud. It helps you get going without spinning your wheels. It is a matter of personal preference for some people to turn it off. Either way is fine if it is how you like your car to respond when traction on the road is limited.
Hope that answered your question,
Jon
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Wednesday, November 27th, 2019 AT 4:27 AM