Replies to This Discussion

Permalink Reply by John Austin on August 8, 2020 at 1:29pm

AKI is "Anti Knock Index."  There are 2 common octane ratings for fuel:  MON (Motor Octane Number) and RON (Research Octane Number).  The AKI is obtained by adding the MON and RON and dividing by 2.  The octane rating on a fuel pump in the US is AKI, but in other countries it could be MON or RON- in Europe, for instance, the pump octane is usually RON.  You're correct that 90 AKI fuel, ethanol or not, and 93 AKI fuel, ethanol or not, would all be OK.

John

• ▶ Reply

Permalink Reply by George Snedeker on August 8, 2020 at 2:32pm

thanks for the education john...so...if I went with 93 pump gas with ethanol should i use a fuel stabilizer like stabil 360  for instance to reduce water issues

• ▶ Reply

Permalink Reply by John Austin on August 8, 2020 at 3:24pm

Jabiru does not approve of fuel additives, so you're on your own there.  I'm not recommending it, but I've used PRI-G fuel stabilizer for years  - however, I've never blended it with fuel containing ethanol, so no experience there.

Here's a link to a service letter, JSL007-07, that goes into great detail about fuel for Jabiru engines: https://jabiru.net.au/wp-content/uploads/2018/05/JSL007-7_Fuel_Guid...

Near the end of the service letter, Jabiru recommends tearing down the carburetor and mechanical fuel pump every 200 hrs or 6 months (yikes!) to inspect for rubber deterioration and metal corrosion if using fuel with 10% ethanol or greater.  The letter is from 2017, so I don't know if they've updated their recommendations or not. I don't run fuel with ethanol - makes life a lot simpler!  ;>)

John

• ▶ Reply

Permalink Reply by George Snedeker on August 8, 2020 at 3:27pm

thanks john i'll check it out

• ▶ Reply

• ‹ Previous
• 1
• 2
• Next ›
• Page