I've done the same for 50
Haven't used anything but 87 grade for 50 yrs in Pa, always kept fuel in tank with Stabil or Seafoam in all equip. and remove my battery from tractor. Never had a problem starting the next year.
Guys:
Finally got my info on the 19hp Kohler Courage engine on my 6 yr old Troybilt tractor.
Serial #3612409283 and Model# SV590S.
Tried changing oil and all filters again. Ran for 100 feet of mowing until oil clogged the air filter and blew blue smoke again and shut down.
Please help if you...
Sirs:
My 6 yr old troy-bilt with 19 hp kohler engine was blowing oil thru the air cleaner, blowing blue smoke, then shutting off.
Took it back to Lowe's for repair last year and they did a tune-up.
Ran for 1 season, and now is doing the same thing.
Can you help?
Bob