FUEL  RECOMMENDATIONS 
e, 
WARNING:  Explosive  Fuel1 
Gasoline is  extremely  flammable  and  its vapors can 
explode  if ignited.  Store  gasoline  only in approved 
containers,  in  well-ventilated,  unoccupied  buildings, 
away  from  sparks  or  flames.  Do  not  fill  the fuel tank 
while  the  engine  is  hot  or running,  since  spilled  fuel 
could  ignite  if it comes  in  contact  with  hot parts or 
sparks  from  ignition. 
Do  not  start  the engine  near 
spilled  fuef;  wipe  up  spills  immediately.  Never use 
gasoline  as a cleaning  agent. 
General  Recommendations 
Purchase  gasoline  in small quantities and store in 
clean,  approved  containers.  A container with a 
capacity of 2  gallons  or  less  with  a pouring  spout  is 
recommended.  Such  a container  is  easier  to handle 
and  helps  eliminate  spillage  during  refueling.  Do not 
use  gasoline  left over  from  the  previous  season,  to 
minimize  gum  deposits  in  your fuel system and to 
insure easy starting.  Do not add  oil  to  the  gzisoline. 
Do not  overfill  the  fuel  tank.  Leave  room for the  fuel  to 
expand. 
Fuel Type 
For  best  results,  use  only  clean,  fresh,  unleaded 
gasoline  with  a pump  sticker  octane  rating  of 87 or 
higher.  In  countries  using  the  Research  method,  it 
should  be 90  octane  minimum. 
Unleaded  gasoline  is  recommended  as  it leaves  less 
combustion  chamber  deposits.  Leaded  gasoline  may 
be  used  in  areas  where  unleaded  is  not  available  and 
exhaust  emissions  are  not  regulated.  Be aware 
however,  that  the  cylinder  head  will  require  more 
frequent  service.  See  “Required  Maintenance”  on 
page  7. 
Gasoline/Alcohol  blends 
Gasohol  (up to  10% ethyl  alcohol,  90%  unleaded 
gasoline  by  volume)  is  approved  as  a fuel for Kohler 
engines.  Other  gasoline/alcohol  blends  are not 
approved. 
Gasoline/Ether  blends 
Methyl  Tertiary  Butyl  Ether  (MTBE)  and  unleaded 
gasoline  blends  (up  to  a  maximum  of 15% MTBE by 
volume)  are  approved  as  a fuel  for  Kohler  engines. 
Other  gasoline/ether  blends  are  not  approved. 
OIL  RECOMMENDATIONS 
Using  the  proper  type  and  weight  crankcase  oil  is 
extremely  important  as  is  checking  oil  daily  and 
changing  oil  and  filter  regularly.  (See  ‘Required 
Maintenance”  on  page  7.)  Failure  to  use  the  correct  oil 
or  using  dirty  oil  causes  premature  engine  wear  and 
failure. 
Before  starting  engine,  fill  the  crankcase  with  the 
proper  type  and  quantity  of oil. 
Oil Type 
Use  high-quality  detergent  oil of API  (American 
Petroleum  Institute)  service  class  SG or  SH.  Select the 
viscosity  based  on  the  air temperature  at the  time of 
operation  as  shown  in the table. 
Recommended  SAE  Viscosity  Wades 
TEMPERATURE RANGE  EXPECTED  BEFORE  NEXT  OIL  CHAW6E 
Straight  30-welght  oil Is  preferred.  SAE  lOW-30 oil 
is  not  recommended  above  32”  F.  Using  this  oil 
substantially  increases  oil  consumption  and 
combustion  chamber  deposits. 
(See Changing  Oil” and  “Required  Maintenance”  on 
pages  4  and  7.) 
NOTE:  Using  other  than  service  class  SG or SH oil or 
extending  oil  change  intervals  longer  than 
recommended  could  cause  engine  damage 
which  is  not  covered  by  the  engine  warranty. 
A logo  or  symbol  on  oil  containers  identifies  the  API 
service  class  and  SAE viscosity grade. 
3