Wrong gas in lawnmower ?

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  #1  
Old 09-07-12, 06:45 AM
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Wrong gas in lawnmower ?

Hi all,

I have a 17 hp Crafstmen riding lawn tractor. The other day, my son cut the lawn when I wasn't home and accidentaly put some of the 40:1 gas/oil mixture I use for the weedeater into the gas tank. He finished cutting the grass with it and din't have any issues. I haven't used it since but there is still some in the tank. Should I drain and refill or just fill with more reg. gas to dilute. Hopefully this will not cuase any issues. Thx
 
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  #2  
Old 09-07-12, 07:03 AM
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wrong gas

I would drain the wrong gas out and re-fill with regular like you said. No harm done.
 
  #3  
Old 09-07-12, 07:38 AM
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Mixed gas won't cause you any real issues. It'll smoke a bit, but that is about it.
If there is less then half a tank in there, I'd simply top it up with regular (unmixed) fuel and go.
 
  #4  
Old 09-07-12, 07:57 AM
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I'd just fill up the tank with regular straight gas. Aside from smoking a little the plugs might foul a bit but if it's running fine I would not even bother pulling them to check.

Making the reverse mistake would be very bad. Putting straight gas with no oil into a machine that needs the gas/oil blend can quickly destroy an engine. If that ever happens I would immediately drain the tank, carb. and fuel lines and fill with the proper gas oil mix.
 
  #5  
Old 09-07-12, 08:02 AM
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Mike and Dane share my thought process - mostly full tank, drain it but if the tank is mostly used already I would just top it off with the proper gas and move on.
 
  #6  
Old 09-07-12, 10:07 AM
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Yep, just use it. Top it off with regular.
 
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