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Author Topic: Fuel mix preferences  (Read 4147 times)

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Offline thutch85

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Fuel mix preferences
« on: February 01, 2018, 10:47:52 PM »
I recently started running Motul 800 racing 2-stroke oil (mixed 50:1) and Maxima High Test octane booster (2oz per gallon). The saws seem to be loving it! Starting easier and running stronger in cuts. Thought we'd see what others prefer!?!

Offline Woodcutter_Mo

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Re: Fuel mix preferences
« Reply #1 on: February 01, 2018, 10:55:49 PM »
 I just use Echo Red Armor, Echo Power Blend, Husqvarna XP oil, or Stihl Ultra HP. I have a gallon of Red Armor oil so I'm set for a while, it seems to run great and is easy to see the red dye in the mixed fuel. I run 50:1 with 91 octane non-ethanol gas.
- WoodMizer LT25, Kohler, all manual, old "drag" style WoodMizer sharpener, cat claw single  setter
- Husqvarna 372XP X-Torque/24" bar, 455 Rancher X-Torque/20" bar, 550XP/20" bar, Stihl 024AV/18" Oregon speedcut
- Kioti DK45, '92 Dodge Cummins with Cannonball  bed, '07 Honda Rancher

Offline Al_Smith

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Re: Fuel mix preferences
« Reply #2 on: February 02, 2018, 06:08:08 AM »
 8) Oh goody the great oil debate again .

Offline sablatnic

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Re: Fuel mix preferences
« Reply #3 on: February 02, 2018, 06:44:22 AM »
Aspen alkylate premixed petrol.
Because it doesn't stink, and because it can be stored for years.


Offline ButchC

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Re: Fuel mix preferences
« Reply #4 on: February 02, 2018, 06:54:45 AM »
I run Stihl Ultra and have the most sound reasoning for doing so. I like the smell of it  :D Secondary is that I haven't had any mechanical issues while using it.

 Wife went to work at a fuel depot and they sell fragrances to add to your fuel, that was a new one on me?. I bought the Apple smell and put a dab in the snowblower to test it. Smells like it is running on Apple cider.  I think I will add some to the premix jug ;D

About forgot, my saws all like 91 octane fuel
Peterson JP swing mill
Morbark chipper
Shop built firewood processor
Case W11B
Many chainsaws, axes, hatchets,mauls,
Antique tractors and engines, machine shop,wife, dog,,,,,that's about it.

Offline Woodcutter_Mo

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Re: Fuel mix preferences
« Reply #5 on: February 02, 2018, 07:46:54 AM »
8) Oh goody the great oil debate again .

 I was going to say, there are alot of oil and mix fuel threads  ;)
- WoodMizer LT25, Kohler, all manual, old "drag" style WoodMizer sharpener, cat claw single  setter
- Husqvarna 372XP X-Torque/24" bar, 455 Rancher X-Torque/20" bar, 550XP/20" bar, Stihl 024AV/18" Oregon speedcut
- Kioti DK45, '92 Dodge Cummins with Cannonball  bed, '07 Honda Rancher

Offline mad murdock

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Re: Fuel mix preferences
« Reply #6 on: February 02, 2018, 01:50:45 PM »
for over a year now I have been running nothing but amsoil sabre 2 full synthetic 2 stroke oil, at the "sabre' ratio of about 85 or 90:1 in my Husqvarna 395XP and my other saws, and have had no issues.  I have milled about 40k bd ft to date with the sawmill saw (395), and it is running very strong!  FWIW.
Turbosawmill M6 (now M8) Warrior Ultra liteweight, Granberg Alaskan III, lots of saws-gas powered and human powered :D

Offline thutch85

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Re: Fuel mix preferences
« Reply #7 on: February 02, 2018, 11:07:31 PM »
8) Oh goody the great oil debate again .

I searched two stroke oil, oil fuel mix, and chainsaw fuel and didn't find much on fuel mixes. Wasn't supposed to be a debate, just a sharing of info from personal experience, kind the point of these forums. I'd never heard of "Aspen alkylate premix" before, or the apple scented fuel additive. Thanks for the ideas guys.  :snowball:

Offline Woodcutter_Mo

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Re: Fuel mix preferences
« Reply #8 on: February 02, 2018, 11:18:28 PM »
 I've heared of scented fuel additives for the RC cars that run on the nitro methane stuff, never for a chainsaw though  ???

 Never tried an octane booster in the 2 strokes. I may try it in one of my older saws and see what it does.
- WoodMizer LT25, Kohler, all manual, old "drag" style WoodMizer sharpener, cat claw single  setter
- Husqvarna 372XP X-Torque/24" bar, 455 Rancher X-Torque/20" bar, 550XP/20" bar, Stihl 024AV/18" Oregon speedcut
- Kioti DK45, '92 Dodge Cummins with Cannonball  bed, '07 Honda Rancher

Offline thedoublejranch

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Re: Fuel mix preferences
« Reply #9 on: February 02, 2018, 11:22:44 PM »
I recently started running Motul 800 racing 2-stroke oil (mixed 50:1) and Maxima High Test octane booster (2oz per gallon). The saws seem to be loving it! Starting easier and running stronger in cuts. Thought we'd see what others prefer!?!

We raced motocross for years and would use Motul 800 also (this was what most 2 stroke racers used). Another nice smelling oil, more like perfume was Klotz, cool stuff. They also make race fuel.
http://www.klotzlube.com/small_maintenance_.html
Grab some of that gas Home Depot sells, its actually race gas, you saw will perk up, buy it by the gallon for best value, it pencils out to about $100 for 5 gallons, about the same as race fuel. Comes in qts too, I use the qt bottole to haul in the woods, refill from gallon can. Has stabilizer in it, no alcohol, higher octane too. Smells like the race track too.  ;D

We ran 44:1 or 3 oz to a gallon, 50:1 is about 2.6 oz to a gallon and 40:1 is about 3.2 oz to a gallon.

OK, this below is intended for only those who like to extract the extra power available, especially if you run higher octane fuel. If your not interested, then stop here!
----------------------------------------------------------------------------------------
To get the most out of higher octane, we run our "squish band" at about .028" of an inch. This is the area of the piston outer edge to the head surfacde called squish band. We would measure it over the wrist pins space from piston top to cylinder. We measured it by inserting a small chuck of solder, bend it through the plug hole, over the wrist pin area (stay out of the transfer ports or you will shear the solder off) and then roll crank/piston over TDC back and forth, squish solder, remove solder, measure it. .026" was about minimim, after than, you start losing that pop ie diminishing returns. We woudl shoot for .028ish. Of course, we set this with cylinder gasket thickness then timing was set at 1.1mm BDTC. Dial indicator from Motion Pro to do this, fit in plug hole. Of course, dremel to clean up ports, not smooth, just get rid of turbulence or eddies, as for exhaust, polish those.  ;D
The Double J Ranch & Timber Farm.
Member "NWOA" National Woodland Owners Association"

Offline thutch85

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Re: Fuel mix preferences
« Reply #10 on: February 02, 2018, 11:47:56 PM »
$100 for 5gallons!?!  :-X lol. I've seen VP fuels in 40 and 50:1 premix at 93octane for 20 a gallon. Figured I'd try high test in premium gas to get the octane up close to 100 and save $. In my racing days if you ran high compression you shot for 100octane. Motul, klotz, and maxima were all popular. Went with the maxima high test because it's safe in 2 and 4 strokes.

Offline sablatnic

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Re: Fuel mix preferences
« Reply #11 on: February 03, 2018, 04:42:26 AM »
Been out checking the local prices.
Aspen is $17,58 a gallon (US gallon & dollar).
Gas from the local gas station is $7.47 a gallon. (And that is cheap).

Offline ButchC

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Re: Fuel mix preferences
« Reply #12 on: February 03, 2018, 07:39:15 AM »
Don't worry about it, your fine. Some of these guys have been around saw forums for quite some time and there has been some pretty long winded (stupid if you ask me) threads about the subject and people posting lots of stuff like run my oil n mix or your saw will glow red, explode and kill half the earth's population when it does so.  Bottom line is no differant than any other information you get from the internet, throw out the extremists, absorb wgat seems to make sence, check the manufacturers  specs and go with it and you will be fine,. There ain't any bad oils, just missapplied oils.

8) Oh goody the great oil debate again .

I searched two stroke oil, oil fuel mix, and chainsaw fuel and didn't find much on fuel mixes. Wasn't supposed to be a debate, just a sharing of info from personal experience, kind the point of these forums. I'd never heard of "Aspen alkylate premix" before, or the apple scented fuel additive. Thanks for the ideas guys.  :snowball:
Peterson JP swing mill
Morbark chipper
Shop built firewood processor
Case W11B
Many chainsaws, axes, hatchets,mauls,
Antique tractors and engines, machine shop,wife, dog,,,,,that's about it.

Offline dgdrls

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Re: Fuel mix preferences
« Reply #13 on: February 03, 2018, 08:38:46 AM »
semi or full Synthetic oil, usually Husky.  I have used VP fuel in the past, nice stuff
but I don't run my saws enough to make it pay. 
I keep fresh non-ethanol mixed in small batches

When I ran my Trials Bike then yes Motul oil and octane booster.

D

Offline John Mc

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Re: Fuel mix preferences
« Reply #14 on: February 03, 2018, 01:39:49 PM »
8) Oh goody the great oil debate again .

I searched two stroke oil, oil fuel mix, and chainsaw fuel and didn't find much on fuel mixes. Wasn't supposed to be a debate, just a sharing of info from personal experience, kind the point of these forums. I'd never heard of "Aspen alkylate premix" before, or the apple scented fuel additive. Thanks for the ideas guys.  :snowball:

Try searching for "oil wars", since Al can usually be counted on to make that comment in every thread where the great debate about what oil mix ratio comes up.
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

Offline PNWRusty

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Re: Fuel mix preferences
« Reply #15 on: February 03, 2018, 02:02:46 PM »
I just run what the manufacturer of the engine recommends. Works for me but I've only been using a chainsaw for the last 42 years so maybe I'm being foolish.

Offline Gearbox

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Re: Fuel mix preferences
« Reply #16 on: February 03, 2018, 03:04:40 PM »
When you add oil you raise the octane rating . Just guessing here but 93 octane at 50 to 1 maybe near 100 when mixed . The one reason I run Amsoil sabre at 50 to1 is it chases the Mosquitos away . [ It works try it ]
A bunch of chainsaws a BT6870 processer , TC 5 International track skidder and not near enough time

Offline thutch85

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Re: Fuel mix preferences
« Reply #17 on: February 03, 2018, 04:04:14 PM »
Two stroke oil actually decreases the octane rating a couple points. Google it, all the major 2 stroke engine manufacturers say a 50:1 mix drops it about 2 points. Saws are fairly high compression and air cooled so higher octane is good for performance and engine longevity.

Offline John Mc

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Re: Fuel mix preferences
« Reply #18 on: February 03, 2018, 04:16:35 PM »
All octane does is prevent the spontaneous ignition of the fuel-air mixture as it is compressed. This higher the octane, the more you can compress it without it self-igniting. The higher your compression the higher octane rating is needed. As long as the octane is high enough to prevent self-ignition, you gain nothing by boosting it further. A couple of points as a safety margin makes some sense (especially since gas tends to lose some of its octane rating over time, as some of the components evaporate off), but running 100 octane fuel in a stock saw does not get you anything in terms of increased performance.
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

Offline Gearbox

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Re: Fuel mix preferences
« Reply #19 on: February 03, 2018, 07:36:23 PM »
I can't see how oil added to the gas will lower the octane rating . I should slow the burn . Maybe it leans the mix . I am no expert .
A bunch of chainsaws a BT6870 processer , TC 5 International track skidder and not near enough time


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