Colorimetric oil testing apparatus and system

摘要

A motor vehicle oil quality testing apparatus and system to assess the quality and viability of motor oil in a vehicle to determine if a change of oil is needed. An absorbent strip of chemically treated material is mounted on a self-contained single use display and test card on which a used oil sample is deposited and will change color based on the oil's determined alkalinity in a sealable color comparison chamber indicated to the user if the oil should be changed.

主权项

1. A test strip carrier and display for an oil testing strip comprises in combination,
a thin base sheet of non-porous support and display material, a transparent central viewing portion of said base sheet, an oil test strip secured on said transparent central viewing portion of said base sheet, at least one color test comparison surface on said base sheet adjacent said transparent central viewing portion, an adhesive on a portion of said base sheet inwardly from an edge of said base sheet in spaced relation to said oil test strip, a base sheet fold line extending transversely across said test strip and said transparent viewing portion of said base sheet.