Add Yahoo as a preferred source to see more of our stories on Google. (Photo: Jim Allen/FreightWaves. Manual slack adjusters require consistent adjustment, while automatics should rarely be touched.
Dear Doctor: I have a 2005 Ford F-150 Lariat with the 5.4-liter Triton engine and 85,000 miles. I change the oil every 3,000 miles with conventional oil and a Ford filter. My concern is that the ...