Bruce Lerner will join HollyFrontier as president of HollyFrontier Lubricants and Specialties effective June 1, succeeding Mark Plake, who will step down from the role on June 1 and retire from the company on Dec. 31. Starting June 1, Plake will serve in an advisory role and assist with transition of his current duties.  Champion Oil announced effective May 19 a price decrease of an undisclosed amount for its master warehouse distributors on branded motor oils, compressor oils, 2-cycle oils, 4-cycle lawnmower oils, bar and chain oils, transmission fluids, tractor fluids, hydraulic fluids, gear oils, greases and industrial oils.  U.S. automakers Fiat-Chrysler, Ford and General Motors fired up their Detroit-area production lines May 18 after shuttering them for weeks due to the Covid-19 pandemic.