Exercising the 4 wheel drive?


Full Member
When I had my 4Runner, the owners manual recommended driving in 4 wheel drive for at least five miles once a month (I think, it's been a while).  I didn't see anything like this in the AV's manual though.

BigC Mich

Regional Coord.
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Full Member
I've personally done that with every 4 Wheel Drive I have owned.  It gives me piece of mind that I am keeping the Transfer Case and front drive shaft in good working order.


SM 2012
Full Member
Definately do it.  Its better to realize during a test something is not functioning, than realize it a critical moment.