2-stroke/4-stroke lawnmower engine oil? Help.

Discussion in 'Community' started by Pancake, Jun 10, 2003.

  1. macrumors regular

    Pancake

    Joined:
    Apr 7, 2003
    Location:
    Anchorage, Alaska
    #1
    My dad just freaked because he called from work and told my brother that our lawnmower is two-stroke and to buy oil for it and then mow the lawn. So my brother and I drive to the store and buy two-stroke engine oil and put it in our lawnmower . As soon as we are finished putting the oil in my dad calls again and says he thinks it's four-stroke and then freaks out when I tell him we already put the oil in. Here are my questions.

    How many lawnmowers are fourstroke?(our lawnmower is a Sears one that is at least 11 years old)

    Would it matter if you put 2-stroke oil into a 4-stroke mower?

    How much ram does my mower need to run Fallout 2?

    Thanks.
     
  2. macrumors 68040

    pseudobrit

    Joined:
    Jul 23, 2002
    Location:
    Jobs' Spare Liver Jar
    #2
    Does it smoke like a pig over a fire, especially during startup (bluish smoke)? Does it make a racket? Then it's probably two-stroke.

    Does it have a crankcase with a separate filler neck? Then it's probably four-stroke.

    It's so old I would almost guarantee it's two stroke, but the real question is did you get the ratios right for the oil. You're not supposed to just "put it in," you should measure and mix your oil/gas separately.
     
  3. macrumors regular

    Joined:
    Feb 20, 2003
    #3
    Is it a riding mower? Most riding mowers are four stroke, I'm pretty sure.

    If it's any help, I've got an older Craftsman mower, that's a pusher, and it's four stroke.

    Yes, two stroke oil is different, although I'm not sure how different.
     
  4. macrumors 603

    Dont Hurt Me

    Joined:
    Dec 21, 2002
    Location:
    Yahooville S.C.
    #4
    Yeah its different, it should be 4 stroke, did you put the 2 stroke oil in with the gas or did you put it in where you add 30 weight oil?
     
  5. macrumors 68040

    pseudobrit

    Joined:
    Jul 23, 2002
    Location:
    Jobs' Spare Liver Jar
    #5
    Well, we don't know if he's talking about a riding mower or a regular lawn mower yet, so we can't give him any advice yet. :rolleyes:
     
  6. macrumors regular

    Joined:
    Jun 5, 2003
    #6
    Re: 2-stroke/4-stroke lawnmower engine oil? Help.

    do NOT put 2-stroke oil into a 4-stroke engine. i really don't feel like explaining the mechanics of it, but just don't do it.

    i wouldn't worry about it though, because most push-mowers are 2-stroke. if not, then you just ruined your mower.
     
  7. macrumors regular

    Joined:
    Jun 5, 2003
    #7
    oh yea, you need at LEAST 384mb of ram...you can put in 256 but it mostly just causes binding.
     
  8. thread starter macrumors regular

    Pancake

    Joined:
    Apr 7, 2003
    Location:
    Anchorage, Alaska
    #8
    Thanks.
     
  9. macrumors 68040

    pseudobrit

    Joined:
    Jul 23, 2002
    Location:
    Jobs' Spare Liver Jar
    #9
    Eh? So which is it?
     
  10. macrumors 65816

    Roger1

    Joined:
    Jun 3, 2002
    Location:
    Michigan
    #10
    Since when? I've been mowing lawns for the past 25 years, and I've never seen a 2 stroke push mower.

    You can tell if it is a 4 stroke, because the mower will have an oil filler cap on it somewhere. A 2 stroke engine will not, because you mix the oil with the gas.

    My .02

    edit:spelling
     
  11. macrumors 68040

    pseudobrit

    Joined:
    Jul 23, 2002
    Location:
    Jobs' Spare Liver Jar
    #11
    Right-o.

    Now the thing is, did he mix the 2 stroke oil with the gas, which wouldn't be such a bad thing, or did he dump it in the crankcase, which would present a bit of a problem?
     
  12. macrumors 65816

    Roger1

    Joined:
    Jun 3, 2002
    Location:
    Michigan
    #12
    I wouldn't do anything until your dad got home to check things out. Let him worry about it.
     
  13. macrumors regular

    Joined:
    Jun 5, 2003
    #13
    correction, the little POS pushmower that i had to use when i was 10 was a 2-stroke. like i said, it was a piece of ****.
     

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