The 2 cycle oil is likely much too thin. Also, it is designed to burn and not stick around in the engine for a full year. If you're trying to see how fast you can blow up the motor, use the 2 cycle oil. Otherwise, buy some straight 30 weight. BTW, I would be very weary of a completely empty sump. You may want to look under the deck and see if the bottom seal it leaking. Those seals are pretty easy to change but you have to pull the sump off of the motor to do it. Matt On 11/29/2008 2:46 AM, A Griffith spouted this sage advice: > I just picked up an old lawnmower and there's no oil in the case... I have > ALOT of 2-cycle oil and no regular motor oil. Is there any reason why I > can't use 2-cycle oil in the case? > > > > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list > > > -- mhaas@xxxxxxx Cincinnati, OH http://www.mattsoldcars.com 1967 Rambler American wagon 1968 Rambler American sedan ================================================================= According to a February 2003 survey of Internet holdouts released by UCLA's Center for Communication Policy, people cite not having a computer as the No. 1 reason they won't go online. _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list