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  2. Paint marker - Wikipedia

    en.wikipedia.org/wiki/Paint_marker

    This is a type of marker, often contained within a twist tube, that is a cylinder of semi-hardened oil-paint with a pointed tip. As one writes with it, the point wears down and must be advanced to in order to continue writing. The marker leaves a mark similar to that of chalk. It is useful for marking on wet or oily surfaces.

  3. Grease pencil - Wikipedia

    en.wikipedia.org/wiki/Grease_pencil

    Two grease pencils Historical diplomatic usage. The grease pencil, a wax writing tool also known as a wax pencil, china marker, or chinagraph pencil (especially in the United Kingdom), is a writing implement made of hardened colored wax and is useful for marking on hard, glossy non-porous surfaces.

  4. Benchmark (crude oil) - Wikipedia

    en.wikipedia.org/wiki/Benchmark_(crude_oil)

    A benchmark crude or marker crude is a crude oil that serves as a reference price for buyers and sellers of crude oil. There are three primary benchmarks, West Texas Intermediate (WTI), Brent Blend, and Dubai Crude. Other well-known blends include the OPEC Reference Basket used by OPEC, Tapis Crude which is traded in Singapore, Western Canadian ...

  5. How to check your engine oil and fill if it's low - Autoblog

    www.autoblog.com/article/how-to-check-add-oil...

    If you don't have it, Google is your friend. Next, locate the oil cap; it's at the top of the engine and labeled "OIL" — or "710" if you're looking at it backwards. It may alternatively have an ...

  6. How to change your engine oil and filter | Autoblog Wrenched

    www.autoblog.com/article/how-to-change-your...

    Take rags and wipe off the bottom of the oil pan and the area around the drain plug. Next, find the old oil filter. Remove it by hand or, if needed, using an oil-filter wrench. Be careful toward ...

  7. Uses of radioactivity in oil and gas wells - Wikipedia

    en.wikipedia.org/wiki/Uses_of_radioactivity_in...

    Radiotracers and markers. The oil and gas industry in general uses unsealed radioactive solids (powder and granular forms), liquids and gases to investigate or trace the movement of materials. The most common use of these radiotracers is at the well head for the measurement of flow rate for various purposes. A 1995 study found that radioactive ...

  8. Oil marker - Wikipedia

    en.wikipedia.org/?title=Oil_marker&redirect=no

    Language links are at the top of the page across from the title.

  9. Mean Streak (marker) - Wikipedia

    en.wikipedia.org/wiki/Mean_Streak_(marker)

    Mean Streak (marker) The Mean Streak is a type of marker made by Sanford, but can also refer to a variety of solidified paint marking sticks. This marker is a semi-solidified stick of oil-based paint in a twist tube which makes marks on many types of surfaces, including metal, wood, plastics, and paper, making it a popular graffiti instrument.