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oh about 1/2 to 3/4's of a cup and around 30 -35 dollars they mail u a container fill the sample bottle and mail it back in about a week they E-M U a report,..of metals content anti-freeze percentages ,if you have water mixed in,..even as far as a sodium content,..my last 2 reports were of average wear and seem to be running just fine,they didn't find that many pollutants in the oil..worth the the 35.00 bucks I paid for the info..Call or EM them and they will send you a kit,..Frank
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