1998 GMC Safari Owner's Manual - Page 273
1998 GMC Safari Manual
Page 273 highlights
Checking Engine Oil Pull out the dipstick and clean with a paper towel it or cloth, then push back in all the way. Remove again, it it keeping the tip down, and check the level. The engine oil dipstick a yellow ring. is Turn off the engine and give the a few minutesto oil drain backinto the oil pan. If you don't, theoil dipstick might not showthe actual level. 6-11
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