| i use it occasianally and have noticed a power increase and smoother running-- but also increased engine noise-- i believe this is because the optimax does not deposit as much carbon as "cheaper" fuels and as guest1 added the oils do clean out this carbon as well-- am i right in believing that the engine relies on this carbon build up to a certain degree? | 
15-Nov-2005, 15:18 
Hybrid Mode
