Diesel Truck

   Now, what about pressure?  Oil pressure is what separates the moving metal components of your engine while the engine is in operation; this includes cranking.   No oil can do this without the assistance of a pump.  The engines oil pump forces oil through the engine and the resulting interference creates pressure.  This pressure separates the moving components and creates a lubricant film for these components to travel upon.  Without the engines oil pump in full operation there is no pressure.  [Note:  This is an over simplified explanation of the engines oil system operation.]  Experts have claimed that one startup on a cold engine (a.k.a. Dry Start) is equivalent to 500 miles of travel, in regards to engine wear.  How many times have you started your engine this week, month, and year

  Starting your engine has long been known to be the worst thing you can do to your engine.  Major brand oil companies have quoted this for years.  The facts are simple; oil drains back into the oil pan, oil is needed to lubricate the moving engine parts, cold oil takes longer to travel through the engine to protect these moving parts, and finally unprotected metal to metal contact wears engine components.  This wear results in fine metal particles, these particles circulate through your engine; this is known as contamination.  This contamination further accelerates the wear of your engine.  You get the idea. 

Diesel Truck