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Question DetailsAsked on 9/1/2017

Kerosene instead of gas in lawn mower enginr

John Deere 300 series

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1 Answer


Oops - not going to run well on that, if at all, if yours is a gas rather than diesel engine. If diesel engine might run on it (kerosene and #2 diesel are only a step apart as fuels with Kerosene being essentially the same as a #3 fuel (diesel being #1 and #2 for winter and general use respectively), with diesel being the more volatile - so if diesel engine I would think that if you remove the kerosene from the tank, and drain the fuel filter, it might run OK after that. Kerosene is not as highly refined, so will (for a small engine like that) likely wax up over time.

With a gas engine might start and run because of existing gas in the system but probably not for very long, will smoke like crazy, carbon up your plugs, and almost certainly will not restart. Your tank, fuel filter, fuel lines, fuel pump all need to be drained and flushed with gas - if it ran with the kerosene the plugs need removal and solvent cleaning too.

If the fuel was put in it but caught before it ran any, then just draining and flushing the tank should take care of it.

For professional service Lawn Mower and Power Tool Repair would be your solution.

Answered 3 years ago by LCD

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