Octane question

[pdqdl]

...I flat out refuse to run ANY type of ethanol blended fuel in any of my motors. I'm tired of the issues that it causes.

That's kind of funny. I used to buy 50 gallon barrels of alcohol free fuel, but I gave it up because I couldn't tell the difference in how my saws ran.

I have no problems running the alcohol infested regular gas. Maybe I'm just not paying enough attention.

 

[Bill G]

All carbohydrates do. That's the amylase enzyme in your saliva breaking down those complex sugars into simple ones you can taste. If we didn't taste those sugars, we wouldn't like those starches nearly so well.

Same thing is true for toasting those carbs. They start that digestion well along the way when they are browned. This is even more true of the meats, as they too are broken down by cooking into the amino acids that taste so good.

Salivary Amylase does a bit more than that but sobeit. Anyone who does not believe it go grab 10 unsalted soda crackers and try eating them without sodium or water.

 

[pdqdl]

I'm not sure what your point is, Bill.

 

[bwalker]

That's kind of funny. I used to buy 50 gallon barrels of alcohol free fuel, but I gave it up because I couldn't tell the difference in how my saws ran.

I have no problems running the alcohol infested regular gas. Maybe I'm just not paying enough attention.

It's not that E10 runs bad, it just tends to cause other issues, especially in humid climates and is it pertains to storage.
I'm also convinced that it increases wear in two cycles, but that's only anecdotal on my part.

 

[Bill G]

I'm not sure what your point is, Bill.

The point was clear but by all means you carry on with your peeing match.

 

[pdqdl]

I guess that is your catty way of telling me you didn't have a point?

 

[ZeroJunk]

That's kind of funny. I used to buy 50 gallon barrels of alcohol free fuel, but I gave it up because I couldn't tell the difference in how my saws ran.

I have no problems running the alcohol infested regular gas. Maybe I'm just not paying enough attention.

I do some work for a couple of tree service guys and commercial landscaping. They come in up at the store I hang around at with the other old farts every morning. One guy has at least ten men working. They fill everything with ethanol fuel since that is all they sell. But, since they are there almost every day you can figure about how fast they go through it.
The only repeated problem I have seen is eventually they will get deposits on the valve stems of those 4 Mix engines and lose compression on the blowers, never the weed eaters which is curious because of same design

I asked why they don't just get a tank at the shop, said it has a way of wandering off.

Anyhow, I don't think they give ethanol a second thought.

 

[bwalker]

I do some work for a couple of tree service guys and commercial landscaping. They come in up at the store I hang around at with the other old farts every morning. One guy has at least ten men working. They fill everything with ethanol fuel since that is all they sell. But, since they are there almost every day you can figure about how fast they go through it.

The only repeated problem I have seen is eventually they will get deposits on the valve stems of those 4 Mix engines and lose compression on the blowers, never the weed eaters which is curious because of same design



I asked why they don't just get a tank at the shop, said it has a way of wandering off.



Anyhow, I don't think they give ethanol a second thought.

I do some work for a couple of tree service guys and commercial landscaping. They come in up at the store I hang around at with the other old farts every morning. One guy has at least ten men working. They fill everything with ethanol fuel since that is all they sell. But, since they are there almost every day you can figure about how fast they go through it.
The only repeated problem I have seen is eventually they will get deposits on the valve stems of those 4 Mix engines and lose compression on the blowers, never the weed eaters which is curious because of same design

I asked why they don't just get a tank at the shop, said it has a way of wandering off.

Anyhow, I don't think they give ethanol a second thought.

All 4mix engines have that issue to varying degrees. That's not an ethanol problem, but rather a four stroke burning oil problem.

 

[ZeroJunk]

All 4mix engines have that issue to varying degrees. That's not an ethanol problem, but rather a four stroke burning oil problem.

They use Opti-2 . The deposit has a pink color to it. Thought I had a photo in photobucket I could share but can't find it.

 

[sean donato]

It's a common issue for the valves and exhaust port to get build up on them in the 4 junk engine. Heck even in srihls own can fuel they still do it, just to a lesser degree.

 

[ZeroJunk]

It's a common issue for the valves and exhaust port to get build up on them in the 4 junk engine. Heck even in srihls own can fuel they still do it, just to a lesser degree.

I have gotten two free BR700's that way. Just take them apart and clean the valves and seats.

 

[Fabb]

It's not that E10 runs bad, it just tends to cause other issues, especially in humid climates and is it pertains to storage.
I'm also convinced that it increases wear in two cycles, but that's only anecdotal on my part.

E10 runs better and cleaner, you could have a rubber that doesn't like it but I never had that IN my machines. The issue with water/ethanol is indeed something that could happen as it's a known actor of ethanol; I just never had it before, even after 1-2 years storage.

Just use a premium 2-stroke oil and it won't increases wear.

 

[pdqdl]

The only repeated problem I have seen is eventually they will get deposits on the valve stems of those 4 Mix engines and lose compression on the blowers,

I've had those 4-cycles have problems with the valves, but we never associated it with carbon. The valves get out of adjustment and the engine becomes super hard to pull over due to compressions. My mechanic pulls them apart, adjusts the valves, and away we go with an easy starting engine.

 

[lone wolf]

I've had those 4-cycles have problems with the valves, but we never associated it with carbon. The valves get out of adjustment and the engine becomes super hard to pull over due to compressions. My mechanic pulls them apart, adjusts the valves, and away we go with an easy starting engine.

You can do that your self its easy on those.

 

[ZeroJunk]

I've had those 4-cycles have problems with the valves, but we never associated it with carbon. The valves get out of adjustment and the engine becomes super hard to pull over due to compressions. My mechanic pulls them apart, adjusts the valves, and away we go with an easy starting engine.

Pinkish or whatever color you call it. Seat looks the same. Lose your compression.



https://hosting.photobucket.com/images/ah308/rgerringer/IMG_0360_(1).JPG

 

[Fabb]

@ZeroJunk If you ask me that engine was using oil or it wasn't changed very often which could make it use oil also.

 

[lone wolf]

@ZeroJunk If you ask me that engine was using oil or it wasn't changed very often which could make it use oil also.

Are we talking about a Stihl 4 mix here?

 

[sean donato]

Are we talking about a Stihl 4 mix here?

This is too funny, he accused me of not comprehending and doesn't realize we're talking about a 4 mix engine......

 

[lone wolf]

This is too funny, he accused me of not comprehending and doesn't realize we're talking about a 4 mix engine......

Thats what I thought.

 

[Bill G]

@ZeroJunk If you ask me that engine was using oil or it wasn't changed very often which could make it use oil also.

I sure hope it was using oil!! Hey Jethro I can't find the dag-gum drain plug on this here bugger"