The best replacement for octane is low octane.

The best alternatives to octane are rated as following:
★★★★★  low octane
★★★★  93 octane
★★★★  compression ratio
★★★  91 octane
★★★  precor
★★★  87 octane
★★★  cosmos touch
★★★  compression
★★★  cetane
★★★  vray
★★  cycles
★★  ethanol
★★  ron
★★  isooctane
★★  tirant
★★  cosmos
★★  91
★  furryball
★  env3
★  luxrender
★  89 octane
★  maxwell
★  keyshot
★  lg cosmos
★  redshift
★  heptane
★  osprey
★  89
★  lower octane
★  razr
★  87
★  razr hawk
★  life fitness
★  superfast
★  higher
  lg env3
  digimax
  cobalt flux
  crux
  diablo octane tour
  gas mileage
  98 octane
  95 octane
  methane
  92
  regular gas
  samsung intensity 2
  pantech crux
  research octane

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

Other search terms related to octane and their ratings are:
★★★★★ kayla
★★★ 93
★ 93 octane
★ 87 octane
93 tune
91
You have in mind a companion for octane and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of octane in all years. Click on graph for more.
octane
low octane
93 octane