Quote:
Originally Posted by fkheath
In the old days, it was often recommended that you use 4X4 occasionally to keep the transfer case and front drive train lubricated, but that is no longer needed with the 4Runner. Everything moves and gets lubricated with 2 wheel driving, it is just the front axle gets disconnected in 2 wheel mode.
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per the owners manual:
■Four-wheel drive usage frequency
You should drive in four-wheel drive for at least 10 miles (16 km) each month.
This will assure that the front drive components are lubricated.
