oil mix one does all?

Discussion in '2-Stroke Engines' started by sirmike68, Mar 23, 2008.

  1. sirmike68

    sirmike68 New Member

    I have been using a synthetic oil mix called Opti-2 for my snow blower, weed whacker, chainsaw, etc. All have varying oil mix ratio requirements all the way from 20:1 to 50:1. This oil says "one mix for all" ratios. I have used it have not had any issues. Does anybody see why it would be a problem in my chinese "80" with break-in and normal running?

  2. mickey

    mickey Guest

    What ratio have you been using?
  3. sirmike68

    sirmike68 New Member

    50ml of oil to 4.5L of gas, so 90:1 is what the bottle uses as a mixture. Believe me I was hesitant to put this mix into 20:1 weed eater. I have been using it for a couple years now with no problems.
  4. Your snowblower,weedwacker and chainsaw is not propelling you down the road. Also assuming you have a Chineese Happy Time,these motors are built okay but not to the level of fine precision to your garden tools.
    I dunno. I wouldn't trust ANYTHING from the lawn and garden department at Lowes,Sears,Wal,Mart ect. I like using castor oil (Maxima) but it's expensive and I could only find it thru E-bay so lately I've been mixing it with Marine grade pre mix found at your AUTO PARTS STORE. Also,don't use synthetic when your initially breaking in your engine. Use it AFTER break in. (200-250 miles the ruling is still out on this one)
  5. I've used the all in one mix they sell at Lowes called ProMix (I think it is 8 OZ for 2 or 2 and 1/2 gallons)....Use the same mix for all my power tools and HT engine....seems to work OK.
  6. eltatertoto

    eltatertoto Guest

    i was told that if the machine takes a lower ratio, the only side effect will be more smoke coming out of your pipe, and if anything will do your engine more good. but dont take that as fact, i just knowq that cause i accidentally mixed 40-1 in my sno-blower witch is 30-1 and toro said that. my snow blower worked fine, carp loads of smoke though. infact, every spring, to get the mowers ready for the year, the first tanks of gas are the laft over gas from the snowblower. this lubes the whole engine, therefore improving the life of it.
  7. eltatertoto

    eltatertoto Guest

    for my happy time i use the oil pictured. it comes from advance auto. there was no key, so i found another bottle (not synthetic) and it had a key, and if i was using that bottle, it would be 2 bottles 2 every gallon, so thats what i use. mabey its over kil, but the more the merrier as far as the engine is concerned right?

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  8. azbill

    azbill Active Member

    if that says 2.6 oz...2 is about right
    me and azvinnie only use 25:1 (5oz/gal)
    Last edited: Mar 23, 2008
  9. eltatertoto

    eltatertoto Guest

    thanks for the confermation bill. im about ready to go get a 5 gallon gas can tho. cause 1 gallon doesnt even fill both tanks on by bikes. and i run through gas fast. i dont think im gettin 180. 1 gallon lasts me about 40-50 miles on both bikes, tops. (1/2 gal each)
  10. I use 5 oz to a gallon of my Maxima/Marine synthetic mix.
    There's a balance to all this cause too much oil not only produces smoke but it can also blacken and thicken the inside of your exhaust something fierce.
  11. Nerobro

    Nerobro Member

    If you change the ratio on the oil, you're changing the carburation on your bike. Take care when you change the ratio, you could make your motor run lean... Running lean causes holes in pistons, motors to run hot, and idle hard to maintain.
  12. caddymankc

    caddymankc Guest

    Some people seem to think the more oil in the fuel the longer it will last. But if you run too much oil it can actually hurt your engine, since there would be less gas it could run lean ( and everybody know what happens then), i learned this in my small gas engine class.
  13. Skyliner70cc

    Skyliner70cc Active Member

    The HT manuals all call for 20-25:1. They typically run pretty rich anyway and the small amount of oil in the fuel does not effect the mixture ratio substantially enough to make a difference.

    One half the volume of most two stroke oils are in a light aromatic carrier that does burn. Every wonder how Amsoil 100:1 can be run safely 100:1 in other two stroke engines? Easy, it has less of those base aromatic carriers than other oils meaning you get actually more lubricating oil per ounce than other brands.

    Regardless, there is only one oil (actually 2) that I recommend be run at 50:1 and that is Maxima 927 or Klotz supertechniplate. Regardless of what any oil vendor says, synthetic does not provider superior lubrication in high temperature high pressure two stroke engine application. A synthetic blend containing castor does but with the minor drawback of increased engine deposits. ZERO wrist pin bushing failures on my engines and my customer engines who have followed my advice. Two wrist pin failures leading to engine damage in customers who used pure synthetic at higher ratios than recommended.
    Last edited: Mar 24, 2008
  14. nsideus

    nsideus Guest

    Here is and ratio calculator http://www.csgnetwork.com/oilfuelcalc.html
    Just a thought on cost of fuel 2-stroke vs. 4-stroke.
    Todays price $3.29 gallon
    Total w/2-stroke@25:1 2.5oz bottle@ $1.50 x 2 = $3. + $3.29 = $6.29 gallon
    Total w/4-stroke = $3.29
    Lets say we are getting 100mpg at 1,000 miles the 2-stroke has cost $30 more than the 4-stroke at 10,000 $300 more if your 2-stroke makes it to 100,000 Thats $3,000 more than a 4-stroke.