High octane fuel

[SJPB1982]

Does anyone use the more explosive jungle juice and if so do you notice any diffrerence?

 

[Pukmeister]

Yes and yes.

 

[Engineer]

Does anyone use the more explosive jungle juice and if so do you notice any diffrerence?

Yes - a few more mpg

 

[Kev B]

Yes - a few more mpg

likewise

 

[iangough]

yes, slightly smoother and a little more responsive.
more mpg too which i suppose is inevitable... given its a higher octane rating.

 

[Dellis]

Higher ocane fuel be that petrol or the hotted up diesel will either improve MPG or performance or a percentage of both.

Dave

 

[alimey4u2]

Octane rating at the "pump" is ferk all to do with calorific value, it's its resistance to knocking or pre- ignition... Stick with recommended.

Da doo RON RON

 

[jontym]

Like the rest of em said!

 

[Schtum]

Octane rating at the "pump" is ferk all to do with calorific value, it's its resistance to knocking or pre- ignition... Stick with recommended.

Da doo RON RON

True but you'd expect the higher octane fuel to allow the engine to run more ignition advance more of the time, without the knock sensors intervention; thereby leading to more efficient use any given volume of petrol.

I suspect this is particularly true for '08 onwards bikes which run a higher compression ratio.....

 

[alimey4u2]

True but you'd expect the higher octane fuel to allow the engine to run more ignition advance more of the time, without the knock sensors intervention; thereby leading to more efficient use any given volume of petrol.

I suspect this is particularly true for '08 onwards bikes which run a higher compression ratio.....

Agreed but there is nothing to gain by increasing the " RON" beyond the manufacturers "maximum" recommendations in a stock motor. You are in fact paying out the pocket whilst reducing the "bang" effect of the fuel...

 

[NorthernBoy]

yes, slightly smoother and a little more responsive.
more mpg too which i suppose is inevitable... given its a higher octane rating.

Well, not really inevitable. A higher octane number does not necessarily imply a higher calorific value (Ethanol has a very high octane number, but much less energy per gallon). You only get improvements if the engine is aware that it is being fed higher octane stuff, and is able to do something about it.

There are all sorts of engines that would not care if it was high octane or not.

There is also the possibility that more expensive fuels have more or better additives, keeping everything clean, so that the engine runs better for this reason.

 

[alimey4u2]

Note the last statement....

It might seem odd that fuels with higher octane ratings burn less easily, yet are popularly thought of as more powerful. Using a fuel with a higher octane lets an engine be run at a higher compression ratio without having problems with knock. Compression is directly related to power, so engines that require higher octane usually deliver more power. Some high-performance engines are designed to operate with a compression ratio associated with high octane numbers, and thus demand high-octane gasoline. It should be noted that the power output of an engine also depends on the energy content of its fuel, which bears no simple relationship to the octane rating. Some people believe that adding a higher octane fuel to their engine will increase its performance or lessen its fuel consumption; this is false - engines perform best when using fuel with the octane rating they were designed for.

Using Super Fuels
One of our users commented that using higher octane fuel than your engine requires actually gives no benefit and may be a waste of money. This is because virtually NO engines require 98 RON over 95, and the market for 'super' fuels seems to be based on people's misunderstanding of octane ratings and the placebo effect of filling up with 'more powerful' fuel - making motorists think their engine is running better in some way.

What do the fuel companies say then, to justify the "increased power" claims for the super grade fuels? Some companies say that while all fuels contain cleaning additives, 'super' fuels contain more or better detergents to keep the injectors cleaner than standard fuel. Others say the fuel is a few percent denser which gives slightly more power per litre. These benefits may be marginal though in comparison to the extra cost involved so it is worth ensuring that your engine will actually benefit before filling up.

 

[Slowdown]

There are all sorts of engines that would not care if it was high octane or not.

Fortunately, the 1200 engine can tell the difference.

The only difference I see is that I get an extra journey to or from work before I have to fill up.

 

[RickG]

The useful size of the bang depends on the calorific value of the juice and the optimum degree of ignition advance. As has been said, only engines that can automaticly increase the amount of advance to take advantage of higher octane fuels will reap any advantage from running higher octane fuel compared to 'normal'. While the 1200 engines do have adjustable advance, does it continually test how much it can push the advance before the knock-sensors tell the sytem it's gone to far or, more simply just retard the ignition from the standard setting if it detects pre-ignition? Clearly only the first option would get something more from higher octane super-fuel?

For what it's worth I can't detect any clear difference between normal and super either in terms of power or tank range.

 

[cookie]

Does anyone use the more explosive jungle juice and if so do you notice any diffrerence?

i have done a few times, but no difference detected.

 

[pikeydave]

I look upon it as a little treat for the bike for being nice to me

 

[iftikartaxis]

Yes i use the higher octane on the bike and vw fsi i was told to use it by the vw dealers better fuel consumption and this is true
started using it on the bike and as i ride two up it seems to perform better not sure if the fuel consumption is better
Then again i only potter on with the wife on the back

"Praise the lord and pass the Ammunition"

 

[LBL]

my thoughts

I dont know about the calafonic values or anything else really

All i know is whilst in France last month, i would fill up with my mate who had a speed triple, he would always get better MPG than me, i would put in about 15 litres to his 14. At one garage they only had the "expensive" fuel and at the next pit stop he had to put in 15 litres to my 14.

How about that for a scientific experiment

 

[Magnum]

I use it all the time. Bike is more responsive and MPG is at least as good as the cheap stuff.

 

[Monty]

I have tried both flavours and noticed no difference in power, smoothness or fuel economy.