Leaded Gas in 17' Axys

[brandon1]

Not trying to start a Race gas/Avgas Octane debate with this question.

Is it ok to run leaded gas in the new sleds, 17' Axys, specifically?

I like to start and end my riding year by running a few tanks of Avgas or race gas as they store way cleaner and better. But they are leaded, and with the EFI I don't want to hurt the Exhaust sensor.

 

[AndrettiDog]

Yep, it's actually good for it. Lead lubricates. It gets a bad rep from the auto industry where it eats through catalytic converters in cars. However, understand that more octane does not make your stock sled run better, but actually worse. The lower the octane you can run w/o detonation, the hotter and therefore more power you create. It's all relative to altitude and I believe pressure. Higher octane is better for your motor because it's not building as much energy (therefore you have less HP).

Some will dump a gallon or so of Av fuel into their tank to dilute ethanol fuel (good idea) and/or get some good lubrication to the motor. I think a cap of oil in the tank isn't bad either.

 

[mountainhorse]

It is fine to use the way you are intending. Actually a really good idea... you will only notice a small change in performance for that day you are running it.

Make sure you are running it in the non-ethanol setting.

The Exhaust sensor is strictly a sealed thermocouple probe... not an oxygen sensor.






.



.

 

[14RMK144]

Yep, it's actually good for it. Lead lubricates. It gets a bad rep from the auto industry where it eats through catalytic converters in cars. However, understand that more octane does not make your stock sled run better, but actually worse. The lower the octane you can run w/o detonation, the hotter and therefore more power you create. It's all relative to altitude and I believe pressure. Higher octane is better for your motor because it's not building as much energy (therefore you have less HP).

Some will dump a gallon or so of Av fuel into their tank to dilute ethanol fuel (good idea) and/or get some good lubrication to the motor. I think a cap of oil in the tank isn't bad either.

It is fine to use the way you are intending. Actually a really good idea... you will only notice a small change in performance for that day you are running it.

Make sure you are running it in the non-ethanol setting.

.

So would it be a good idea to get some lead additive from the auto parts store and add that to a 2 stroke. If memory serves the lead in fuel use to be most beneficial for the lubrication of valve guides, in 4 stroke auto engines. Or at least that was the parts that suffered from the introduction of no-lead. So a 2 stroke not having valves would it be beneficial or only for 4 stroke sleds

 

[mountainhorse]

Nope.

Tetraethyl-lead will raise octane and was also in there to help prevent undue valve wear in 4 cycle engines. ... that is it's 'lubricant' property...It really does not "lube" your motor.

It can leave deposits on ring lands and foul plugs more easily than without... detrimental no... beneficial as a lube... not IMO.

Lubing the engines IS better... but on an axys, you can turn up the oiler through re-flash of the ECU...which will lube the entire motor...

Or add some to the fuel which will only benefit the top end as fuel is introduced directly before the cylinder in the transfer port... None of that will make it into the bearings or lower piston.

My 2¢




.

 

[Escmanaze]

non-ethanol setting

Mountainhorse, Why do you say to make sure to run it in the non-ethanol setting?

 

[mountainhorse]

Because AV-100LL does not have ethanol in it

 

[AZ800]

Because AV-100LL does not have ethanol in it

And it's much higher octane. No need to add fuel with the eth setting.

 

[brandon1]

It is fine to use the way you are intending. Actually a really good idea... you will only notice a small change in performance for that day you are running it.

Make sure you are running it in the non-ethanol setting.

The Exhaust sensor is strictly a sealed thermocouple probe... not an oxygen sensor.






.



.

Thanks,

I thought that the sensor was simply heat but couldn't find anything solid indicating that. I'm not a fan of stabil etc. and I've had really good luck storing sleds with avgas in them and sometimes some race gas if we had some left overs.