The best replacement for stabil is startron.

The best alternatives to stabil are rated as following:
★★★★★  startron
★★★★  seafoam
★★★★  marine stabil
★★★  marvel mystery oil
★★  pri-g
★★  pri g
★  ring free
★  heet
★  ethanol shield
★  star tron
★  techron
★  starbrite
★  brooks ariel
★  stabil
  sea foam
  stabil s

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

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



Google Trends

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stabil
startron
seafoam