What Fuel Octane to use

my concern is that the lower quality fuels have less additives for cleaning

octane

in italy we have two grades, that j still have to check in octane.
super(normal) and super octane.(very rare to find, it seems that only shell has.)
j found some difference.
normaly j fill with no brand name(normal) and engine is working properly.
j had bad experience with brand name normal on the highway. the engine was not working for some time starting at stop the engine was trying to turn off. j filled a tank of shell premium and the engine cleaned.
j am starting to use STP nero per injectors as recommended from other walk riders, j will post results as soon as j get it as not easy to find.
ciao
hannibal

Hey you forgot California

Here in the great state of Kalifornia we have 87, 89 (sometimes) and 91. I use 91 as the book says.

The use of low octane fuels in engines designed for higher octane can cause pre-ignition (sometimes called pinging or knocking) on the compression stroke resulting in a loss of power and possible damage to the piston heads. I only use the specified octane (91 or higher) in my bike.

Thanks Guys for your input, Premium it is!


RuneRunner

octane

Hi the rune is the first gasoline engine j have since 1989. all my cars and trucks are diesel.

so j asked today for the octane we get normally, not premium.

the standard is not less than 92. now that j know j am more happy.

ciao
hannibal

Has anyone tried V-Power in their Rune? According to Shell, the fuel is supposedly the most technologically advanced and cleanest burning fuel out there. At 93 octane, I think I'll give it a shot.

NEED4SPEED,

Let us know how the Shell fuel does you may want to also ck the exhaust residue & see if there is any change

RuneRunner