Glossary “polyglycol” Definition:
Mixture of several alcohols. Polyalkylene glycol ether brake fluids that meet specifications for DOT 3 and 4 brake fluids.
p
polymer
Glossary “polymer” Definition:
Substance made of giant molecules formed from smaller molecules of the same substance.
pollutant
Glossary “pollutant” Definition:
1). Any substance that adds to the pollution of the atmosphere, water or land. 2). Any substance in the exhaust gas from an engine or evaporating from the fuel system.
pollution
Glossary “pollution” Definition:
1). Any gas or substance in the air that makes the air less fit to breathe. 2). Excessive noise from machinery or vehicles.
poly alkaline glycol (PAG)
Glossary “poly alkaline glycol (PAG)” Definition:
The synthetic lubricant of choice in many automotive air conditioners used with HFC-134a refrigerant.
poly ester
Glossary “poly ester” Definition:
Synthetic lubricant that is used in some HFC-134a A/C systems.
polyester putty
Glossary “polyester putty” Definition:
Material used to fill and level minor surface imperfections and low areas.
polishing compound
Glossary “polishing compound” Definition:
Fine grit compund designed for machine application. Also called machine glaze.
polishing pad
Glossary “polishing pad” Definition:
Cotton or synthetic cloth cover that fits over the polisher’s backing plate.
poles
Glossary “poles” Definition:
A positive ( or negative ) terminal in a cell or battery; the ends of a magnet ( north or south).
police options
Glossary “police options” Definition:
High-performance equipment package available on new cars for law enforcement authorities.
police package
Glossary “police package” Definition:
Term used for police options.
polished
Glossary “polished” Definition:
Intake and exhaust passages that have been finished to the smoothest possible surfaces to remove the rough surfaces left by factory casting.
polishing
Glossary “polishing” Definition:
Using very fine compound to bring the paint surface up to full gloss.
pole shoe
Glossary “pole shoe” Definition:
The soft iron core of an electromagnet.
polar moment of inertia
Glossary “polar moment of inertia” Definition:
1). Tendency of a body to resist angular or rotational acceleration. 2). The tendency of a vehicle to resist cornering.
polarity
Glossary “polarity” Definition:
1). The quality of an electrical circuit or component that determines the direction of current flow. 2). The description of whether a voltage is positive or negative with respect to some reference point. 3). The condition of being positive or negative in relation to a magnetic pole.
polarizing a generator
Glossary “polarizing a generator” Definition:
The correction of the generator field polarity, so it will build up polarity in the proper direction to charge the battery.
points
Glossary “points” Definition:
Term used for breaker points.
POA valve
Glossary “POA valve” Definition:
Term used for suction throttling valve.