96 4runner
#3
75W90 for both as mentioned.
A good quality synthetic will offer less resistance in the diffs and trans/transfer, which could attribute to better MPG. Will also give easier cold weather shifting in the transmission. Redline or Amsoil are 2 brands that come to mind.
A good quality synthetic will offer less resistance in the diffs and trans/transfer, which could attribute to better MPG. Will also give easier cold weather shifting in the transmission. Redline or Amsoil are 2 brands that come to mind.
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