Do you run with the retarder/jake all the time? My jake is two position and it seems that in the low position the brake lights do not come on.

I tend to leave the jake off, unless I'm in a place where I'll need it. I may be wrong, but I've felt if it comes on with every lift if the accellerator (and even on cruise as you mentioned), that I'm losing MPG because of braking that isn't needed?


Ray