Octane question

[bwalker]

Plantation , or at least before they changed the name for political correctness, runs through my property a couple of thousand feet. Any tips on how to steal some of it ?

I don't recommend that...

 

[Kodiak Kid]

The Echo manual says to use at least 89 octane gas, with a maximum of 10% ethanol.
I only have 87 octane e-free fuel around here (I'm not going to pay $11.25/gallon for 110 octane e-free fuel thats sold near me).

Should I just use 93 octane @ 10% ethanol and call it a day?
Or will adding something like (Lucas Oil octane booster) to my 87 octane, e-free fuel serve me better?

I already plan on draining the fuel tank and running dry for storing my Echo CS-620p any length greater than 3 days.
I know the optimal solution would be to just use 89+ octane, e-free but I just cant find any within 45 mins+ drive.


Thanks for your time fellas!

Heres wuts up bud. Higher octane is more stable as far as shelf life and compression light off with higher octane takes less compression vs lower octane. Therefore burns slower and cooler than lower octane. Power benefits from higher octane? NONE! No power loss either. Nothing you will notice anyway gain or loss. its just better for an engine that's running constantly at a high rpm be it a high performance engine or not. Like a Pratt and Whitney airplane motor, all engines like cold induction! Higher octane helps this. Also the shelf life of 100 oct far surpasses standard pump gas! By a couple years. Not months. Power saws love higher octane fuels like AV gas because of the constant WOT for 30 or 45 seconds and over minutes at a time some times. A two-stroke motocross bike with constant on and off throttle delivery? Not so much. Don't worry about hurting your motor! I've been running AV gas mixed at lean ratios along with TK7 fuel additives for years now through my power saws. Modified hopped up production saws that get run hard for several hours a day at five to six days a week. Price? How much are you really going to burn? Do you go through more than Five gallons a year? More than 10 or 15? Try 15 gallons a week!
I would recommend AV gas to anyone that enjoys running a power saw. Regardless of how often. This is all just strictly my opinion bud. Some may agree? Some may not? However, run five gallons of 87 pump through your saw with a brand new plug. Then swap plugs to another new one and fun five gallons of Aviation fuel. Both fuels at your saw manufacturer's suggested mix ratio. Then compare the two plugs. I think you will see what Im talking about Pard! Hope this info helps.

Cut safe, stay sharp, and be aware!

 

[bwalker]

Heres wuts up bud. Higher octane is more stable as far as shelf life and compression light off with higher octane takes less compression vs lower octane. Therefore burns slower and cooler than lower octane. Power benefits from higher octane? NONE! No power loss either. Nothing you will notice anyway gain or loss. its just better for an engine that's running constantly at a high rpm be it a high performance engine or not. Like a Pratt and Whitney airplane motor, all engines like cold induction! Higher octane helps this. Also the shelf life of 100 oct far surpasses standard pump gas! By a couple years. Not months. Power saws love higher octane fuels like AV gas because of the constant WOT for 30 or 45 seconds and over minutes at a time some times. A two-stroke motocross bike with constant on and off throttle delivery? Not so much. Don't worry about hurting your motor! I've been running AV gas mixed at lean ratios along with TK7 fuel additives for years now through my power saws. Modified hopped up production saws that get run hard for several hours a day at five to six days a week. Price? How much are you really going to burn? Do you go through more than Five gallons a year? More than 10 or 15? Try 15 gallons a week!
I would recommend AV gas to anyone that enjoys running a power saw. Regardless of how often. This is all just strictly my opinion. Some may agree? Some may not. However run five gallons of 87 pump through your saw with a brand new plug. Then swap plugs to another new one and fun five gallons of Aviation fuel. Then compare the two plugs. I think you will see what Im talking about Pard! Hope this info helps.

Cut safe, stay sharp, and be aware!

Just about none of that is technically accurate...
And running AvGas in a saw is stupid and terrible for your health.. Not to mention the fact that it will in many cases make your saw run worse.

 

[Kodiak Kid]

Just about none of that is technically accurate...

Right on, cool man! I guess its a good thing Im not a technician then hu? Just a guy with thousands and thousands of hours on a power saw.

By the way bwalker, did you do that tip throw back test yet?

 

[Kodiak Kid]

There's no magical compression number thay requires higher octane, especially a static number. Too many other variables in the engine. Just suffice it to say 90% of saws or o. P. E. Don't need any mire then regular pump gas.

100% Agreed! I just feel that a saw that is going to aquire a lot of hours on it over time. I mean thousands, not hundreds. Higher octane is simply better than lower octane for the cylinder and piston life. Is higher octane necessary? Not one bit!

 

[sean donato]

Heres wuts up bud. Higher octane is more stable as far as shelf life and compression light off with higher octane takes less compression vs lower octane. Therefore burns slower and cooler than lower octane. Power benefits from higher octane? NONE! No power loss either. Nothing you will notice anyway gain or loss. its just better for an engine that's running constantly at a high rpm be it a high performance engine or not. Like a Pratt and Whitney airplane motor, all engines like cold induction! Higher octane helps this. Also the shelf life of 100 oct far surpasses standard pump gas! By a couple years. Not months. Power saws love higher octane fuels like AV gas because of the constant WOT for 30 or 45 seconds and over minutes at a time some times. A two-stroke motocross bike with constant on and off throttle delivery? Not so much. Don't worry about hurting your motor! I've been running AV gas mixed at lean ratios along with TK7 fuel additives for years now through my power saws. Modified hopped up production saws that get run hard for several hours a day at five to six days a week. Price? How much are you really going to burn? Do you go through more than Five gallons a year? More than 10 or 15? Try 15 gallons a week!
I would recommend AV gas to anyone that enjoys running a power saw. Regardless of how often. This is all just strictly my opinion bud. Some may agree? Some may not? However, run five gallons of 87 pump through your saw with a brand new plug. Then swap plugs to another new one and fun five gallons of Aviation fuel. Both fuels at your saw manufacturer's suggested mix ratio. Then compare the two plugs. I think you will see what Im talking about Pard! Hope this info helps.

Cut safe, stay sharp, and be aware!

Av gas vs pump gas is a bad comparison. The octane doesn't have anything to to with performance or shelf life. Avgas is a different formulation of fuel. It's an alkyd based fuel, which does have benefits over pump gas save the lead content and cost. The cost I could stomach, the lead content I won't. I haven enough going for me for getting cancer don't need to breath in the lead fumes from running avgas. Besides that it's over $6.00 gal.

 

[KRP]

100% Agreed! I just feel that a saw that is going to aquire a lot of hours on it over time. I mean thousands, not hundreds. Higher octane is simply better than lower octane for the cylinder and piston life. Is higher octane necessary? Not one bit!

I bet you have more pumps offering 100LL than regular auto gas on that island.

 

[bwalker]

Av gas vs pump gas is a bad comparison. The octane doesn't have anything to to with performance or shelf life. Avgas is a different formulation of fuel. It's an alkyd based fuel, which does have benefits over pump gas save the lead content and cost. The cost I could stomach, the lead content I won't. I haven enough going for me for getting cancer don't need to breath in the lead fumes from running avgas. Besides that it's over $6.00 gal.

This.

 

[bwalker]

100% Agreed! I just feel that a saw that is going to aquire a lot of hours on it over time. I mean thousands, not hundreds. Higher octane is simply better than lower octane for the cylinder and piston life. Is higher octane necessary? Not one bit!

I would like to know how you came to the conclusion that higher octane will make your piston and cylinder last longer? Provided you aren't detonating your motor doesn't care what the fuels octane is.

 

[Kodiak Kid]

Av gas vs pump gas is a bad comparison. The octane doesn't have anything to to with performance or shelf life. Avgas is a different formulation of fuel. It's an alkyd based fuel, which does have benefits over pump gas save the lead content and cost. The cost I could stomach, the lead content I won't. I haven enough going for me for getting cancer don't need to breath in the lead fumes from running avgas. Besides that it's over $6.00 gal.

Never said anything about better performance. I just said Its better for the cylinder life. Also, maybe the octane content itself doesn't have anything to do with shelf life but the fuel as a whole is far more stable than pump gas when it comes yo long gevity. Fumes? I'd be more concerned about the mix oil fumes than the fuel it's self.p Ive had more problems with over mixed rich fuel than anything when it comes to burning of the eyes and respiratory problems. Price. Like you said Sean. 6.00 a gallon. Well, as far as being expensive? That all depends on how much fuel your going to consume over time. My biggest point is. If one is looking to run high octane gas? Based on experience. "I myself" feel AV gas is the better option vs pump gas and octane boosters.

 

[Kodiak Kid]

I would like to know how you came to the conclusion that higher octane will make your piston and cylinder last longer? Provided you aren't detonating your motor doesn't care what the fuels octane is.

Read my first post again on combustion and burn temperatures. Look, I'm simply offering my advice and opinions Pard. All based on experience. Whomever can take it or leave it. I don't care one bit one way or another! I will continue to run AV gas in my saws and sleep just fine every night.

Thankyou, that is all.

 

[lone wolf]

Never said anything about better performance. I just said Its better for the cylinder life. Also, maybe the octane content itself doesn't have anything to do with shelf life but the fuel as a whole is far more stable than pump gas when it comes yo long gevity. Fumes? I'd be more concerned about the mix oil fumes than the fuel it's self. However Ive had more problems with over mixed rich fuel than anything when it comes to burning if the eyes and respiratory problems. Price. Like you said Sean. 6.00 a gallon. Well. As far as being expensive that all depends on how much fuel your going to consume over time. My biggest point is. If one is looking to run high octane gas? "I myself" feel AV gas is the better option vs pump gas and octane boosters based on experience.

"All forms of lead are toxic if inhaled or ingested. Lead can affect human health in several ways, including effects on the nervous system, red blood cells and cardiovascular and immune systems. Infants and young children are especially sensitive to even low levels of lead, which may contribute to behavioral and learning problems and lower IQ in Children have increased sensitivity due to their developing nervous systems."

 

[Kodiak Kid]

I bet you have more pumps offering 100LL than regular auto gas on that island.

No but 100LL is definitely not hard to come by! That's for sure.

 

[Kodiak Kid]

"All forms of lead are toxic if inhaled or ingested. Lead can affect human health in several ways, including effects on the nervous system, red blood cells and cardiovascular and immune systems. Infants and young children are especially sensitive to even low levels of lead, which may contribute to behavioral and learning problems and lower IQ in Children have increased sensitivity due to their developing nervous systems."

No argument here! I also don't stick my face down in my exaust when running a power saw.

 

[bwalker]

Read my first post again on combustion and burn temperatures. Look, I'm simply offering my advice and opinions Pard. All based on experience. Whomever can take it or leave it. I don't care one bit one way or another! I will continue to run AV gas in my saws and sleep just fine every night.

Thankyou, that is all.

Neither of those "opinions" are based in reality.

 

[lone wolf]

No argument here! I also don't stick my face down in my exaust when running a power saw.

That crap burns the hell out of my eyes the few times I tried it.

 

[bwalker]

No argument here! I also don't stick my face down in my exaust when running a power saw.

Your breathing fumes wether you stick your face in the exhaust or not. That's why after working in the woods for a day your clothing stinks of exhaust fumes.

 

[lone wolf]

Your breathing fumes wether you stick your face in the exhaust or not. That's why after working in the woods for a day your clothing stinks of exhaust fumes.

I bet pump gas fumes are fairly toxic too. and I cant stand breathing diesel fumes in those are rough!

 

[Kodiak Kid]

Neither of those "opinions" are based in reality.

Now, do you have any replies based on experience like everyone else, or just your normal hypothetical replies Pard?

 

[Joseph W Santora]

Don't use 100ll. It does have more lead in it than pump gas. Find yourself an airport that sells MOGAS. 91 octane and no lead and none of the additives of pump (even e-free) gas. My lawn takes 1-1/4 to 1-1/2 tanks to mow on pump gas with ethanol. Using MOGAS I can do it using less than 1.