Sewice & Appeurunce  Care 
220 
Gasolines  for  Cleaner Air 
Your use of gasoline  with detergent 
additives  will  help  prevent deposits 
from  forming  in your  engine and  fuel 
system.  That helps  Beep your engine  in 
tune  and your  emission  control system 
working  properly.  It’s good  for your 
vehicle,  and you’ll  be doing  your  part 
for  cleaner  air. 
Many  gasolines  are now  blended  with 
materials  called  oxygenates.  General 
Motors  recommends  that you use 
gasolines  with these  blending materials, 
such  as MTBE  and ethanol.  By doing 
so, you  can help  clean  the air,  especially 
in  those  parts of the  country  that have 
high  carbon  monoxide  levels.  In 
addition,  some  gasoline  suppliers are 
now  producing  reformulated  gasolines. 
These  gasolines  are specially  designed 
to  reduce  vehicle  emissions.  General 
Motors  recommends  that you use 
reformulated  gasoline.  By doing 
so, you 
can help  clean the air,  especially  in 
those parts  of the  country  that have 
high  ozone  levels. 
You  should  ask your  service  station 
operators 
if their  gasolines  contain 
detergents and  oxygenates, and 
if they 
have  been  reformulated  to reduce 
vehicle  emissions. 
Fuels  in  Foreign  Countries 
If  you  plan  on driving  in  another 
country outside  the 
U.S. or Canada, 
unleaded  fuel  may  be  hard to find. 
Do not use  leaded  gasoline. If you use 
even  one tankful,  your  emission 
controls  won’t  work  well  or 
at all. With 
continuous use, spark  plugs can get 
fouled,  the exhaust  system can corrode, 
and  your  engine  oil can deteriorate 
quickly.  Your  vehicle’s  oxygen  sensor 
will  be damaged.  All  of that  means 
costly  repairs  that wouldn’t  be  covered 
by  your  warranty.