Dutch_12078 wrote:
Mile High wrote:
Tireminder makes two sensors - one for brass and steel stems and one for aluminum like the newer cars have with built in TPMS. It has to do with electrolysis and corrosion. The standard sensors are brass threads and will corrode on an aluminum stem, so they make an all plastic sensor for aluminum stems.
Brass threaded sensors work fine on aluminum stems if you coat the stem with dielectric grease or anti-seize first.
Or you can order the plastic ones that are the same price I believe. On my Jeep I use deflaters, standard caps and the tireminders so I really don't want to grease them up, but in reality I use the brass on my aluminum. They don't stay on there long enough to worry about.