Fuel Mixture Would running a Grubee Skyhawk at 50:1 kill the engine?

Discussion in '2-Stroke Engines' started by ak74u137, Apr 7, 2015.

  1. ak74u137

    ak74u137 New Member

    Hey guys, the title says it all. I ran 50:1 in the beer can engines and had no issues, just wondering about these engines if there is any difference. Thanks guys

  2. HeadSmess

    HeadSmess Well-Known Member


    now i cant use my engines legally, i went to 100:1 for a while just to experiment... still running, last time i went for a blat :) and i made sure i used a full 4 litres of fuel on that ride, at WOT.... or about 300 km or so.

    just use decent oil. synthetic is overkill and a waste of money.

    even castor oil at the chemist works :) though it makes a mess, it smells great!
    Bruce Welham and ak74u137 like this.
  3. ak74u137

    ak74u137 New Member

    I run castrol as its cheap, got like a liter of AMS oil tho all synthetic when i was more into running WOT at 60 KMPH for time.
  4. butre

    butre Well-Known Member

    castor oil is the best of the best, the only problem is the massive amount of carbon it makes
  5. ak74u137

    ak74u137 New Member

    Ikr, took off my head after break in and all i seen on the piston was a bunch of carbon inside it
  6. Rolling2High

    Rolling2High Member

    Has anyone used 50 to one mix that is premixed at Home Depot? Will it blow the engine? It is supposed to be ethanol free and 93 octane and good to store in winter. I'm scared to try it but I know I have been mixing to much oil. If the 50 to 1 mix gets more on top end?
  7. butre

    butre Well-Known Member

    that stuff is fine. overpriced, but fine.
    Timbone likes this.
  8. Fabian

    Fabian Well-Known Member

    These engines should be run at 25:1 for good reliability and long service life.
  9. Legwon

    Legwon New Member

    your mix all depends on the oil your using.
    i was using Castrol @ 40:1, i suggest 32:1 for that
    now am using Quaker State, @ 40:1 its great!
    MacZulu got me a bottle of Amsoil, that can run(proven) @ 100:1(will have to wait to use that on my current engine till i rebuild)