The best replacement for duratec is vulcan.

The best alternatives to duratec are rated as following:
★★★★★  vulcan
★★★  zetec
★★★  ecotec
★★  duratorq
★  mzr
★  k series
★  endura
★  vulcan engine
★  duraplus
  zetec engine

Your alternative for duratec is not listed? Suggest!
Speaking about duratec, one probably shouldn't forget about gelcoat.

Other search terms related to duratec and their ratings are:
★★★★★ gelcoat
You have in mind a companion for duratec and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of duratec in all years. Click on graph for more.
duratec
vulcan
zetec