I'm due to change my transfer case (GL-4 gear oil) and differential fluids (GL-5 oil), and would like to clean them out with Auto-Rx before hand. The differential application says 2 oz. of Auto-Rx per quart of oil and to drive for 1,000 miles. My front and rear differentials both take quarts of 2.7 quarts oil, and my transfer case takes roughly the same amount.
That said, would it be possible to substitute 1 oz. per quart of oil and drive for 2,000 miles? Thank you.
