Aviation fuel?

[sl8er4lyf]

I know that BP out near Kumeu sells aviation fuel, i think its 105 octane, anyone used this? if so are there high risks of melting your engine? haha

[marty]

Oh the Hyo will love it - it will be good for at least 10 more hps - there's a reason they use it in race cars and bikes.

[onearmedbandit]

Yip, just be careful with the throttle until you get used to the free extra power.

[CHAPLIN]

It just seams like your getting more hp because your engine will run smoother in the top end.

[onearmedbandit]

This has been thrashed out many times before. If your engine is tuned to run fine on 91 or 95 you will simply not get any advantages from running a higher octane fuel. If you say increase the compression ratio or play with the ignition timing then your engine will require more octane before it will start 'knocking', and that's when a higher octane fuel will be of benefit. In itself it doesn't really add power, but allows your engine to run in a state of tune where it can make more power.

[YellowDog]

105 isn't tht high and you can pay loads of money for much higher octane levels.

Next time I'm down to near empty will fill up at the BP in Kuemu to give a go!

What is the price per litre?

[cs363]

One thing to be cautious of, make sure it's unleaded if you have an injected bike with an O2 sensor and/or catalytic converter as the lead can cause issues with both these items.
Or check with someone in the know regarding your model bike. (like a dealer/mechanic etc., rather than that know it all mate.....)

Having scored the dregs of a tin of some Elf racing fuel, that got added to the fuel in my tank, I can report it smells bloody nice

[Pussy]

One thing to be cautious of, make sure it's unleaded if you have an injected bike with an O2 sensor and/or catalytic converter as the lead can cause issues with both these items.
Or check with someone in the know regarding your model bike. (like a dealer/mechanic etc., rather than that know it all mate.....)

Having scored the dregs of a tin of some Elf racing fuel, that got added to the fuel in my tank, I can report it smells bloody nice

Avgas is DEFINITELY NOT unleaded.
It's loaded with TEL (Tetra Ethyl Lead)
In my opinion, it is shite fuel for your average road going vehicle

[cs363]

Avgas is DEFINITELY NOT unleaded.
It's loaded with TEL (Tetra Ethyl Lead)
In my opinion, it is shite fuel for your average road going vehicle

Yes, that's what I thought - and you should know, even if you do run kerosene these days
Great for old bikes though eh?

[quickbuck]

In my opinion, it is shite fuel for your average road going vehicle

Yup,
what he said..... Motor really needs to be tuned to it to get the best from it, as been said before.

[Trouser]

Lead is death to platinum spark plugs also.

[sl8er4lyf]

Shot for the assistance, i'll speak to BP Kumeu and let you guys know whether it is infact unleaded and also $/L

[quickbuck]

Shot for the assistance, i'll speak to BP Kumeu and let you guys know whether it is infact unleaded and also $/L

There is very little likelihood of it being unleaded.
The Blue Avgas is low lead, and tends to be very expensive.
If it is Green, it is the highly leaded 100 Octane stuff that is available from Aeroclubs.

At a rough guess, i think it is about $2.40 per litre?? Could be more....

[marty]

If it's Avgas, it's Low Lead,(110LL) and will be green or blue/purple.

Don't be a dick - it will NOT make your bike run any better - in fact, it will more than likely damage it if you do not tune the engine to run on it.

Last time I used 2 litres of avgas (and I have access to unlimited supply of it) in a tank topped with 15l of 96, the pipes ran grey for the next 250kms. There was no increase in performance.

[onearmedbandit]

Same here. I only run it when I fill up at the track. No difference whatsoever (yoshi slip-on, filter, and yoshi engine management) in performance, and yeah a grey pipe for the next few hundred k's.