1. Welcome Hearth.com Guests and Visitors - Please enjoy our forums!
    Hearth.com GOLD Sponsors who help bring the site content to you:
    Hearthstone Soapstone and Cast-Iron stoves( Wood, Gas or Pellet Stoves and Inserts)
    Caluwe - Passion for Fire and Water ( Pellet and Wood Hydronic and Space Heating)

Let's Talk 2 Cycle Mixes

Post in 'The Gear' started by MarkinNC, Aug 1, 2011.

  1. MarkinNC

    MarkinNC Minister of Fire

    Joined:
    Oct 3, 2010
    Messages:
    529
    Loc:
    Leicester, NC
    I love your post soley because I have a 372xp!

    Helpful Sponsor Ads!





  2. MasterMech

    MasterMech Guest

    For those wondering, Amsoil says you can mix their oil up at 50:1 or any ratio that pleases you if the recomended 100:1 makes you nervous.
  3. Battenkiller

    Battenkiller Minister of Fire

    Joined:
    Nov 26, 2009
    Messages:
    3,732
    Loc:
    Just Outside the Blue Line
    Yes, and that fact makes it a lot more forgiving. That's the main reason why I am willing to spend a few extra pennies on the Saber.

    We go through a lot of gas while carving, so I can't run off to the gas station to get exactly one metered gallon. I get about 15 gallons of gas but only make up a small can of mix at a time to make sure it's always fresh. My mixing flask only has markings 1/2 gallon increments and my conveniently sized No-Spill mix can is 1 1/4 gallons. There is plenty of headroom above the top mark, though, and it's hard to see the gas level through the red plastic. By going to a 100:1 ratio oil, if I add a little too much gas to the can... NBD.
  4. MasterMech

    MasterMech Guest

    Anybody ever read the back of the bottle on Stihl's HP Ultra Synthetic? It pretty much says serve it up in shot glasses and enjoy! lol
  5. Highbeam

    Highbeam Minister of Fire

    Joined:
    Dec 28, 2006
    Messages:
    9,122
    Loc:
    base of Mt. Rainier on the wet side, WA
    I haven't been able to find 2 cycle oil that did not claim to include a stabilizer. Still, I add sta-bil to every 5 gallon jug that I buy for use with the small engines.
  6. MarkinNC

    MarkinNC Minister of Fire

    Joined:
    Oct 3, 2010
    Messages:
    529
    Loc:
    Leicester, NC
    You may be correct, that may be saw shop fantasy. I am using stabil as well. I think they have a new ethanol product out?
  7. smokinj

    smokinj Minister of Fire

    Joined:
    Aug 11, 2008
    Messages:
    15,972
    Loc:
    Anderson, Indiana
    They do thats what I use. Even makes the gas smell more like gas.
  8. oilstinks

    oilstinks Feeling the Heat

    Joined:
    Jan 25, 2008
    Messages:
    457
    Loc:
    western NC
    i read somewhere from a husky dealer that they see less piston scoreing on the stihl ultra hp than any other oil. Mix the ratio of your oil to manufacture specs. If not mix it your way the same all the time and have your equipment tuned to your mix. Equipment will lean(less gas more oil carbon build up) or richen(less oil more gas not enough lube) depending on your mix. Small engines might not be as finicky but my race gas feed trx250r atv has taught me alot on 2strokes over the years.
  9. smokinj

    smokinj Minister of Fire

    Joined:
    Aug 11, 2008
    Messages:
    15,972
    Loc:
    Anderson, Indiana
    yea, for me 50:1 on a 122cc saw milling is not enough even though they say it is I run 40:1. Tuning doesn't change from 50:1 to 40:1. You can pretty much look at any saw turning 12.5k rpms and up as a racing engine.
  10. DuckDog

    DuckDog Burning Hunk

    Joined:
    Sep 3, 2010
    Messages:
    140
    Loc:
    Eastern Ontario
    I'v been running Amsoil Sabre @ 80:1 in my saw, trimmer and boat for years. No issues at all. Best part is 1 mix for everything 2 stroke.
  11. Kenster

    Kenster Minister of Fire

    Joined:
    Jan 10, 2010
    Messages:
    1,593
    Loc:
    Texas- West of Houston
    I'm always afraid I'm going to grab a 40:1 bottle for my saw mix instead of a 50:1. Will it make much difference in the operation of the saw OR potential wear and damage?

    MS390 with muffler mod.
  12. wood-fan-atic

    wood-fan-atic New Member

    Joined:
    Oct 4, 2010
    Messages:
    870
    Loc:
    Long Island, NY
    Stihl Ultra. No substitutes. No problems.
  13. MasterMech

    MasterMech Guest

    The only ill effects I see that causing would be extra smoke and maybe some slight carbon build up. I don't see you killing an otherwise healthy saw.
  14. Kenster

    Kenster Minister of Fire

    Joined:
    Jan 10, 2010
    Messages:
    1,593
    Loc:
    Texas- West of Houston
    I guess it's better to have a little too much oil than not enough. Another worry is when I have the little bottle that is made to mix one gallon and I am pouring gas from a five gallon can into my one gallon saw gas can. It's hard to determine exactly a gallon so the mix might not be perfect. I don't suppose this is critical as long as I'm really close?
  15. MasterMech

    MasterMech Guest

    I'm anal with mix ratio. My routine goes a little like this... Add .5 gallons of gas to my 1.25 gallon can, dump 1 2.6oz bottle of mix oil in (50:1), then add gas to the mix bottle to grab all the oil inside, dump that in the can and top off to 1.0 gallons.

    Next time your at the gas station, fill your can with 1.0 gallons and use a marker to mark the level. Easiest way to double check against bad pump meters and makes it easier to fill out of another can.

    Yeah I suppose if your close your not going to blow anything up. Better to err on the conservative side tho.
  16. Kenster

    Kenster Minister of Fire

    Joined:
    Jan 10, 2010
    Messages:
    1,593
    Loc:
    Texas- West of Houston
    My heavy plastic gas can has a mark on the outside to show one gallon, but the plastic is so thick you can't see through it tell exactly where the gas level is inside. Maybe I should make myself a dip stick.
  17. MasterMech

    MasterMech Guest

    I have a mega bright LED flashlight that works well for that purpose. Shine it inside the filler neck. Small enough to toss in the glove box in the trucks.
  18. CTYank

    CTYank Minister of Fire

    Joined:
    Sep 28, 2010
    Messages:
    924
    Loc:
    SW CT
    No-load speed is not quite the same thing as speed under load. Some few thou off.
  19. Bigg_Redd

    Bigg_Redd Minister of Fire

    Joined:
    Oct 19, 2008
    Messages:
    3,814
    Loc:
    Shelton, WA
    None whatsoever. I buy AvGas 5 gallons at a time so for sheer convenience I dump a pint in the can which makes 40:1. Been doing it for years.
    .
  20. Thistle

    Thistle Minister of Fire

    Joined:
    Dec 16, 2010
    Messages:
    4,206
    Loc:
    Central IA
    That's exactly how I've done it for years.Add a bit of gas to the empty oil bottle,shake it good,add that to the 1/2 gallon mixed then top it off & shake again.Do the same procedure when mixing the occasional 2.5 gallon batch.Just use the same Husky Premium oil in the 6.4oz bottle.
  21. jharkin

    jharkin Minister of Fire

    Joined:
    Oct 21, 2009
    Messages:
    3,323
    Loc:
    Holliston, MA USA
    I don't have nearly the experience running saws as a lot of guys here but I will throw in my vote. I have settled on using plain old Penzoil air cooled at 32:1 in everything.

    Reason... One of my other hobbies is flying big gas powered remote control airplanes. One of the airfields I flew out of we shared with an ultralight club. Those guys depend on their engine running right to get home in one piece and they all used either Amsoil or Penzoil. If Penzoil is good enough for an airplane I figure its good enough for for tools.


    Since there seems to be some real oil geeks here you guys might find this interesting.. This guy tested a half dozen oils and then tore down the motor each time and documented each oils effect on carbon build up, piston scuffing, run temperature, etc
    http://www.geistware.com/rcmodeling/articles/oil_test/index.htm
  22. smokinj

    smokinj Minister of Fire

    Joined:
    Aug 11, 2008
    Messages:
    15,972
    Loc:
    Anderson, Indiana
    880 is a toque monster 460 on the other hand is tune to 14.5 :cheese:
  23. turbocruiser

    turbocruiser Feeling the Heat

    Joined:
    Jun 10, 2011
    Messages:
    320
    Loc:
    Rocky Mountains Majesty
    Can I change the thread just slightly to ask about the recently released Stihl Moto Mix

    http://www.stihldealer.net/stihlmotomix-dealer-_yraje.aspx

    My main problem is that I really never need more than 1 gallon at a time and because of all the added ethanol around here gasoline won't stay fresh for long. I may actually "save" some money with not wasting stale gasoline or worse off yet stale gasoline/oil mix however at almost $8 per quart that might be my imagination! Thanks.

    Mods: If this is more appropriate for another thread altogether, please feel free to delete this. Thanks.
  24. MasterMech

    MasterMech Guest

    I'm seeing these pre-mixed fuels popping up at different shops here too. I have no experience using them myself but haven't heard any negatives other than it's very expensive to use. If you can't stand the thought of using E10 gasoline/ethanol in your 2-cycle equipment then this would be my first recomendation. I don't encourage folks to use 100LL AvGas in their equipment because of the lead content and the extra octane is unnecessary. Remember that new equipment is coming out with stratocharged engines (kind of like EGR for 2-strokes) and catalytic mufflers. AvGas will poison those mufflers and the lead deposits in the engines aren't helpful either. Plus 100LL AvGas is illegal in anything other than an aircraft and expensive to boot.

    FWIW I have had good results using Stihl's HP Ultra Synthetic oil mixed with E10 gasoline and storing it in the can and the machine for months at a time. I mix 1 gallon at a time and it usually lasts me for a few weeks unless I'm cutting wood or blowing leaves. My BR600 sees maybe 1 tank of fuel all summer and knock on wood, no fuel storage issues yet.

    I think the pre-mixed fuels are going to be a fad that will either never really take off or go away altogether. $8 a quart is $16 a gallon, holy wallet-shock batman! Not really a viable option if you burn much of the stuff. The real fix to the ethanol "problem" is the manufacturers need to ensure the materials in the fuel system are alchohol compatible. Especially in recent years, even the European manufacturer's awareness of E10/rubber compatibility issues in North America has been improved and as a result their have been fewer and fewer issues in new machines. Now if only we could make "E10 ready" Gasket kits for older carb's we'd be all set.
  25. Thistle

    Thistle Minister of Fire

    Joined:
    Dec 16, 2010
    Messages:
    4,206
    Loc:
    Central IA
    Actually there are 4 quarts to a gallon. So that'd be $32 instead. :bug:

Share This Page