[s-cars] Octane MTM+1

[JR]

Ok I have had the MTM+1 chipset for awhile and it works fine, provided 
that I use 93 octane gas.  This was fine because local gas stations had 
93 octane and all was well.  I have moved to an area that only has 92 
octane at best and the car does not like it.  I get bucking and chugging 
on WOT.  When I do come across a 93 octane pump when traveling and fill 
up, no more bucking.  Octane boost seems to do nothing.  I've heard that 
dumping tuolene in the gas tank can raise that octane.  I am leery of 
putting anything not specifically meant for my gas tank into my gas 
tank.  What do you guys think?  Is tuolene OK?  Any other alternatives 
aside from removing the chip?

Thanks,

JR