Skip to main content



Royal Purple Commercial Lubricants

Written by Kate Wade on . Posted in .

Royal Purple has introduced Duralec, its new commercial lubricant product line. The new line has been specifically developed for the over-the-road trucking, construction, mining, agriculture and heavy-duty fleet markets with state-of-the-art technology to optimize equipment performance.

Some of the new products include Duralec Super, made for EPA 2007 and 2010 emissions-equipped diesel engines requiring the use of emissions-compliant oil; Duralec Ultra, recommended for use in two-cycle and four-cycle diesel applications including automotive, commercial fleet and stationary industrial diesel engines; Duralec ATF, a synthetic high-performance automatic transmission fluid formulated for demanding operating conditions; Duralec MTF, which provides outstanding friction performance with both the metallic and nonmetallic friction materials found in today’s high-tech power-shift transmissions; and Duralec Gear Oil HD, which is recommended for use in truck and automotive front or rear differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid.