tech tips
HMMWV Pressure
Q: What should hot oil pressure be on a HMMWV at idle?
–Dave Morton
A: Most show about 30 psi at hot idle on the stock gauges.
Dark And Dirty
Most of us know that brake fluid becomes dark and dirty over time, and should be changed every two or three years by bleeding the old fluid out of the wheel cylinders and refilling the master cylinder with new fluid. Though most of us also know that conventional brake fluid is hygroscopic (meaning it absorbs moisture, which is the primary reason it should be renewed), do we ever wonder from where the dark and
