Virginia Cooperative ExtensionGrisso, Robert D.2020-06-152020-06-152020http://hdl.handle.net/10919/98873Gear up and throttle down (GUTD) is a fuel saving practice that can be used for saving fuel when drawbar loads are lighter and power takeoff speed can be reduced in tractors8 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Extension publicationhttps://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/442/442-450/BSE-326.pdfTractorsenginesgearsEfficiency