1994 GMC SIERRA service

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Page 252 of 404

GMC SIERRA 1994  Owners Manual Checking  Things Under the Hood (continued) 
Windshield  Washer Fluid 
................................. 6-45 
Brake  Master  Cylinder 
................................... 6-46 
Replacing  Brake Syste

Page 253 of 404

GMC SIERRA 1994  Owners Manual Service 
Your GM dealer knows  your  vehicle best and wants  you to be happy  with it. 
We hope you’ll go to your  dealer  for  all your service needs. You’ll get 
genuine 
GM parts and  GM-traine

Page 254 of 404

GMC SIERRA 1994  Owners Manual NOTICE: 
If you  try  to  do  your  own  service  work  without  knowing  enough 
about  it,  your  vehicle  could  be  damaged. 
__ . 
Maintenance  Schedule 
Section  7  of this manual, “Scheduled

Page 255 of 404

GMC SIERRA 1994  Owners Manual NOTICE: 
Fuel  that  is  more than 5 % methanol is bad  for your  vehicle. 
Don’t  use  it. It can  corrode  metal  parts  in your  fuel  system  and 
also damage  plastic  and rubber  parts.  That

Page 256 of 404

GMC SIERRA 1994  Owners Manual Fuel Requirements 
NOTICE: 
Diesel fuel or fuel additives  not recommended  in  this  manual 
could  damage  your  fuel system  and engine.  Your  warranty 
wouldn’t  cover this damage.  And: 
Diese

Page 257 of 404

GMC SIERRA 1994  Owners Manual Cold Weather  Operation 
In cold  weather  (below 20”F, or -7”C), use 1-D or “Winterized” Number 
2-D fuel (a blend  of I-D and 2-D). Be sure you get  the  right  fuel. In very 
cold  temperat

Page 274 of 404

GMC SIERRA 1994  Owners Manual What to Do with Used Oil 
Did you know that used engine  oil contains  certain elements  that may be 
unhealthy  for your skin and could even  cause  cancer? Dont let  used 
oil stay 
on your skin fo

Page 278 of 404

GMC SIERRA 1994  Owners Manual This doughnut-shaped  logo  (symbol) is used  on  most oil containers  to help 
you select the correct oil. 
You  should  look for this  on 
the oil container, and  use only those oils that 
display