# Rb20DET octane **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [January 18, 2008, 8:31am UTC](https://forums.speedlife.net/t/rb20det-octane/135167 "2008-01-18T08:31:31Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![RUBBEDUCKEY](https://avatars.discourse-cdn.com/v4/letter/r/bcef8e/32.png) [@RUBBEDUCKEY](https://forums.speedlife.net/u/RUBBEDUCKEY)\ **Post date:** [January 18, 2008, 8:31am UTC](https://forums.speedlife.net/t/rb20det-octane/135167/1 "2008-01-18T08:31:31Z")
Since gas prices are still going up :S which suxs. On a RB20DET motor they recommend to use premium gas which ranks at a 91 octane level. Has anyone tried to use 87 octane on their motor? Or is it a bad idea with the turbo? ---
**Author:** ![Hanzzzzz](https://avatars.discourse-cdn.com/v4/letter/h/3e96dc/32.png) [@Hanzzzzz](https://forums.speedlife.net/u/Hanzzzzz)\ **Post date:** [January 18, 2008, 9:48am UTC](https://forums.speedlife.net/t/rb20det-octane/135167/2 "2008-01-18T09:48:50Z")
u might get away with it in the winter, dial back the timing and the boost if ur planning on using 87. and dont floor it. genreally, it’s not a good idea. if u cant afoard the gas, it’s time to get a slower car. ---
**Author:** ![RUBBEDUCKEY](https://avatars.discourse-cdn.com/v4/letter/r/bcef8e/32.png) [@RUBBEDUCKEY](https://forums.speedlife.net/u/RUBBEDUCKEY)\ **Post date:** [January 18, 2008, 10:08am UTC](https://forums.speedlife.net/t/rb20det-octane/135167/3 "2008-01-18T10:08:12Z")
Thanks alot ---
**Author:** ![irishjohn](https://avatars.discourse-cdn.com/v4/letter/i/9e8a1a/32.png) [@irishjohn](https://forums.speedlife.net/u/irishjohn)\ **Post date:** [May 12, 2008, 9:02am UTC](https://forums.speedlife.net/t/rb20det-octane/135167/4 "2008-05-12T09:02:05Z")
DONT USE 87…it should be getting 94+ octane booster…it might save u some money now but rebuilding after busting your ring lands will cost much more.