Which Octane?

**Snowcarver04** · 22nd November 2006, 08:17

I had a Cbr 250 R before i wrote it off bout a month ago but I was always told a high reving machine (19,000rpm) should always use the 98 fuel. I noticed more power and it is a lot better for your engine.So it really doesnt matter whast fuel you use in a low reving engine

**Morcs** · 22nd November 2006, 10:02

I started using 95 for a bit. ran ok.

Used 98 for a few tanks, was pining.

Went to 91, after running fuel set through the system (cleans all the shit etc.. out of your tank and carbs) and its been running really well. throttle is a lot more responsive. And thats on a 16k redline bike.

**lukelin250** · 22nd November 2006, 13:59

ive read all the comments and im still confused. someone do a dyno test as i think this would be the most conclusive evidence

**The_Dover** · 22nd November 2006, 14:05

are you fucking retarded?

in order to get more power from a fuel (assuming the engine is properly tuned) then it would require the fuel to have a higher calorific value.

put what teh fuckin manufacturer specifies in the heap of shit and ride it.