Mogas Poll (All Aircraft Owners Please)

[James331]

S1 would be fun, but man, 2-3gph of car gas, that's hard to beat!

If I had a second plane to my 15GPH plane, it be a N3 pup or something like yours, where I wouldn't even have to think about the operating costs, could fly to work for about the same, or less, than driving and not have to deal with other drivers.

 

[OkieFlyer]

Just to be clear, when the incident occurred, we were running under, and properly configured for, the mogas STC for the airplane...don't remember if it was Petersen's or EAA's, tho, after all these years. I can't definitively say it was vapor lock, nor attribute the direct causs to mogas. Supposition only, based on an observed lack of other causative factors....

Jim

And don't get me wrong. I wasn't implying that it wasn't vapor lock. I know that is said to be an issue in some airframes/engines/fuel systems, so it very well could have been. Also, I'm sure there is a difference in fuel blends depending on where you live, the particular refinery that is making it, so on, and so forth. That may be the primary concern with mogas right there, since there is not a uniform blend across all parts of the country, and from season to season.

 

[denverpilot]

The mogas around Denver is 87 octane. One advantage is it is lead free. If you use it the STC says to run one tank of 100LL every 20 tanks. The Lycoming 0-360 A1P (I think thats right) they put in Super Cubs with STC runs fine on it and makes hours beyond TBO. No difference in performance.

Regular unleaded here is 85 with the corn juice added. You're correct that when you can find no-corn-juice stuff at stations it's usually 87.

You can get 91 and higher without corn juice over at the racing fuel place over off of Santa Fe. That's the 30 mile one I've mentioned from APA.

It isn't as cheap as the 87 at the tiny number of stations that have the no corn juice variety. Which is another factor in us deciding dragging the trailer over there, isn't worth it.

The trailer was built during the $6+ 100LL years a few years back. In that case, it was almost worth it. It sits parked and empty for that day to come again. During that particular run-up, the delta between the 91 and 100LL was wider.

 

[coloradobluesky]

You can get 87 octane mogas at KLMO. Last I checked it was $3.80.

 

[rtk11]

Is Mogas available where you fly? I would think you may be in KFUL, the only place that they may have a Remos GX, but I am not sure if that outfit is set up as an FBO, insurance wise etc.?

You are correct - I'm at KFUL. General Aviation (FBO) has fitted their crew car (a Jeep Grand Cherokee) with a fuel rig so they can pump MOGAS. So very convenient if you need MOGAS.

When you say you use 100LL do you have to change your maintenance schedule or any other changes?

Using 100LL, Rotax recommends changing the oil at 25 hours (instead of 50 hours using MOGAS).

Aeropilot L600 that you own, does it have a distribution center in USA?

Deon Lombard, a partner in my aircraft, is the exclusive US distributor and he's based out of KFUL.

Is that the same acft. that crashed about a month ago, at KFUL, gear collapsed? Do you know any more details about why?
Thanks.

Not a crash per se, but a nose gear collapse. I wasn't there when it occurred, but I understand it was an error chain of a hard landing and excessively hard braking by a pilot that didn't have a lot of accumulated takeoffs/landings in the aircraft. Hard application of rudder under braking may be another contributing factor.

Aircraft has been repaired and my CFI (who has the most hours of anyone in the US in the aircraft) is pleased with the aircraft performance. My CFI flew the aircraft around Oshkosh and back from Oshkosh to KFUL (before the incident) and around the Southland (after the incident) with no reported issues.

 

[OkieFlyer]

Regular unleaded here is 85 with the corn juice added. You're correct that when you can find no-corn-juice stuff at stations it's usually 87.

You can get 91 and higher without corn juice over at the racing fuel place over off of Santa Fe. That's the 30 mile one I've mentioned from APA.

It isn't as cheap as the 87 at the tiny number of stations that have the no corn juice variety. Which is another factor in us deciding dragging the trailer over there, isn't worth it.

The trailer was built during the $6+ 100LL years a few years back. In that case, it was almost worth it. It sits parked and empty for that day to come again. During that particular run-up, the delta between the 91 and 100LL was wider.

In these parts, it's more common that the 91 octane premium is sans corn, just the opposite of you. Although, maize free gas can be had in 87, 89, and 91 pretty handily. It does cost around $.20/gal more than the subsidized E10, but that's pretty much all I buy for my vehicles on principle.

 

[bluesideup]

Hi.
Thank you for the feedback.

You are correct - I'm at KFUL. General Aviation (FBO) has fitted their crew car (a Jeep Grand Cherokee) with a fuel rig so they can pump MOGAS. So very convenient if you need MOGAS.

That is good to know. Do you know how many octanes and how much a gallon?

Using 100LL, Rotax recommends changing the oil at 25 hours (instead of 50 hours using MOGAS).

Do you have to use any additive when using LL, I understand that it's hard on the transmission?

Deon Lombard, a partner in my aircraft, is the exclusive US distributor and he's based out of KFUL.

I am not sure if it's the same person, this was a while back, but the one that was at KFUL said he owned the GX, but someone else was the owner, and he was advertising Demo flights, scenery tours, etc., which are illegal in an LSA? He was also telling people he is a Pilot and he was not.. Maybe not the same?

Aircraft has been repaired

Was that an engine rebuild, I assume a prop strike?[/QUOTE]

 

[rtk11]

Bluesideup, I think we're derailing this thread. Let's keep it on topic of MOGAS.

Not sure of price of MOGAS from General Aviation, but I'm pretty sure it's 91 octane.

Decalin additive should have no effect on the transmission/reduction gear on the Rotax. Here's a thread about Decalin and 100LL use instead of MOGAS in a Rotax engine: http://www.rotax-owner.com/en/rotax-forum/3-4-stroke-technical-questions/4577-decalin-fuel-additive

 

[FastEddieB]

Do you have to use any additive when using LL, I understand that it's hard on the transmission?

Decalin is a popular additive when using 100LL in a ROTAX.

It's what I use when unable to procure mogas. Supposedly holds the lead in suspension somehow so it can be burned during normal combustion.

Anecdotally, I do know one flight school owner who stopped using it. He was of the opinion that it was leading to deposits in the exhaust, making the exhaust system more brittle and prone to cracking. Vast majority seem to use it with no ill effects.

 

[OkieFlyer]

I'd like to hear more from those of you who could use mogas, but would choose not too. What is the hang-up for you? I'm not looking to start arguments. I just want to hear all points of view.