GMC 1993 Jimmy Owner's Manual page 347

Service Station Checks
It is important for you or a service station attendant to perform these
under-hood checks at each fuel
fill.
Check the engine oil level and add i f necessary.
Check the engine coolant level and add i f necessary.
Check the windshield washer fluid level and add i f necessary.
See the Index under these items for information on how to check them.
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