www.zxrworld.co.uk

Hi everyone,
Just got my ZXR up and running this weekend (Yay!) and I'm not sure whether to run it on regular or super unleaded fuel? From what I understand (I may be wrong), using a higher octane rated fuel than specified by the manufacturer is pointless because it makes no difference other than the hole in your wallet. However searching on the internet you find people that swear that their bike performs better in some way when running on premium fuel. I was just wondering if anyone on here runs their ZXR on premium and if they notice any difference? Also one last thing, if someone could tell me the capacity of the reserve tank that would be great Cheers.

the octane numbers are related to the amount of compression you can subject the fuel/air mix to before it self detonates (knocks), our bikes are rated for a minimum 92RON, so anything above that does nothing from a detonation point of view.

some petrol's contain particular additives to supposadly clean the fuelling system, or the cylinders, or contain ethanol etc...some of these might have an effect...but personally i fill up every week on morrisons 95RON petrol and my bike is perfectly happy with the cheap stuff.

main tank is 12L reserve is 4L. - semantics aside.

There is NO reserve tank on a ZXR400.
There IS one tank with different internal outlet pipes.

Jack94x wrote:Hi everyone,
Just got my ZXR up and running this weekend (Yay!) and I'm not sure whether to run it on regular or super unleaded fuel? From what I understand (I may be wrong), using a higher octane rated fuel than specified by the manufacturer is pointless because it makes no difference other than the hole in your wallet. However searching on the internet you find people that swear that their bike performs better in some way when running on premium fuel. I was just wondering if anyone on here runs their ZXR on premium and if they notice any difference?

Jack94x wrote:Also one last thing, if someone could tell me the capacity of the reserve tank that would be great Cheers.

I get about 20-25 miles when I flip to reserve.