Most likely because the dirt was removed and weighed on a laboratory scale calibrated in grams. I'm sure someone did the conversion and found it came out in a weird amount of ounces and decided not to use it. Or there is the possibility that the number of grams appears more impressive then the number of ounces.
Euric ----- Original Message ----- From: "Hillger, Don" <[EMAIL PROTECTED]> To: "U.S. Metric Association" <[EMAIL PROTECTED]> Sent: Thursday, 2004-08-05 23:34 Subject: [USMA:30643] metric use on Fram air filters > This was a pleasant surprise: > > The Fram (brand) automobile air filter package I just examined, has an "ad" on the back touting how good their filter is compared to others. It says "68 grams of dirt trapped before the filter need changing" compared to "56 grams of dirt..." for the copetitors filter. This was done in three languages, English, French, and Spanish; however without converting the grams into ounces in the English version. > > Don > >
