mu2bdriver
Full Access Member
I experimented with blocking the grille this morning on my 50 mile highway drive home to see what it would do to engine temps and heat output. Normally, under similar conditions to this morning the factory gauge would sit between N and O. Blocking just about the entire grille moved the temp gauge as high as the M and then back and forth as I weaved through the hills. No noticeable change on cabin heat and this is with a full radiator and MC thermostat.