Axis Wakeboard Boat Forum

The Monsoon manual says minimum octane rating of 87, but my dealer told me to always use premium fuel. My old Malibu always ran great on regular gas, so I'm wondering if premium is always necessary?

I've got a 2015 T23 with the 409. It certainly isn't mandatory to put premium fuel in it. On the water, I can only buy 87 and it runs fine on that. That said, my gas sits sometimes for weeks or even months either in the boat or in jerry cans. So when I'm at the gas station, I buy premium and put fuel stabilizer in it. So there is pretty much always fuel stabilizer in my fuel tank. Even if I'm buying 87 at the lake, there is still probably 1/4-1/2 a tank of 91 still in there, so I probably run no less than 89 most of the time.

Do I need it? I doubt it.

I wouldn't trust your salesperson if you have the 350 motor and he said use premium.

I was wondering the same question I
And half way through my first tank of gas on my 2015 a22 with the 350 motor.


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I've got ~ 60 hours on my boat and only ran regular, no issues.

I've ran 93 in my 450 all last season and will continue too I'm not going to chance knock and retarded timing due to saving a few cents

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I run regular in my t23. 65 hours no issues


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My dealer said run regular...no problem in our 2016 T23 ...it runs great !!!!!!!

I see people saying the octane they run in their boat...as in their T23, A24, or A22. However, it matters what engine you are running, not the boat.

All the new axis engines say 87 in the Manuel I believe.


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