View Single Post
Old 08-16-2017, 08:29 AM   #12 (permalink)
beemerkid
Base Member
 
Join Date: Aug 2015
Location: Santa Rosa California
Posts: 67
Drives: '16 sport 6MT
Rep Power: 10
beemerkid is on a distinguished road
Default

Quote:
Originally Posted by Chuck33079 View Post
Is there one that makes a real difference? All of the ones I seem to see around raise octane a few points, so your 91 becomes something like 91.4.
Tetraethyl lead.... But seriously, most of them are just ethanol. I've heard about people using toluene though.
beemerkid is offline   Reply With Quote