1994 Buick Skylark Owner's Manual - Page 273
1994 Buick Skylark Manual
Page 273 highlights
Engine Coolant 50J50 mixture of water (prefkrably distilled) and good. quality ethylene glycol base, antifreeke [GM Part No. 1052753 or equivalent) conforming to GM Specification 1825M or approved recycledcoolantconformingto GM Specification fh25M.
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