High Octane Fuel

How does High Octane Fuel improve engine performance?

I assumed it slows the ignition so you could compress the fuel more
and change the timing. So High Octane Fuel on a vehicle with no Anti
Knock Sensor and the timing set up for 95 RON fuel would get no
benefit. Is that right?

 

Yes. Unless an engine is designed for high-octane, delayed ignition,
whether it be fixed or electronically controlled, using the more
expensive stuff will have no benefit.

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ DS#8
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2, IBB#10
`\|/`
`

 

Yes.

 

In a nutshell, yes.

Of course, you do get the benefit if your engine has a higher CR and you
can make extra power from that fuel - these days with the electrickery
gizmo to make it so. The same EG will enable the engine to run on crap
petrol, so it's a win-win.
--
Dave
GS850x2 XS650 SE6a

Teach a man to fish and he and his pikey mates will have the
river cleaned out in a day.