1999 GMC C-SERIES oil dipstick

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Page 211 of 328

GMC C-SERIES 1999  Owners Manual yellowblue     
6-13
Engine Oil (Gasoline Engine)
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 o

Page 212 of 328

GMC C-SERIES 1999  Owners Manual yellowblue     
6-14 When to Add Engine Oil
If the oil is at or below the cross-hatched area, then
youll need to add at least one quart of oil. But you must
use the right kind. This part explains wha