2002 GMC SONOMA oil

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Page 323 of 458

GMC SONOMA 2002  Owners Manual 6-13
Engine Oil
Checking Engine Oil
Its a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground

Page 324 of 458

GMC SONOMA 2002  Owners Manual 6-14
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.When to Add Engine Oil
If the oil is a

Page 325 of 458

GMC SONOMA 2002  Owners Manual 6-15 What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identified by
looking for the starburst symbol.
This symbol indicates that the oil has been certified by
the American Petro

Page 326 of 458

GMC SONOMA 2002  Owners Manual 6-16
As in the chart shown previously, SAE 5W-30 is best for
your vehicle. However, you can use SAE 10W
-30 if its
going to be 0F (
-18C) or above. These numbers on an
oil container show its viscos

Page 327 of 458

GMC SONOMA 2002  Owners Manual 6-17
Driving under these conditions causes engine oil to
break down sooner. If any one of these is true for your
vehicle, then you need to change your oil and filter
every 3,000 miles (5 000 km) or 3

Page 329 of 458

GMC SONOMA 2002  Owners Manual 6-19
Refer to the Maintenance Schedule to determine when to
replace the engine air cleaner/filter. See ªScheduled
Maintenance Servicesº in the Index.
CAUTION:
Operating the engine with the air clean

Page 333 of 458

GMC SONOMA 2002  Owners Manual 6-23
Manual Transmission Fluid
When to Check
A good time to have it checked is when the engine oil is
changed. However, the fluid in your manual
transmission doesnt require changing.
How to Check
Bec

Page 338 of 458

GMC SONOMA 2002  Owners Manual 6-28
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See ªRecommended Fluids and
Lubricantsº in the Index.
Engine Coolant
The cooling system in your vehicle
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