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2. Diesel particulate filter - Wikipedia

   en.wikipedia.org/wiki/Diesel_particulate_filter

   Wall-flow diesel particulate filters usually remove 85% or more of the soot, and under certain conditions can attain soot removal efficiencies approaching 100%. Some filters are single-use, intended for disposal and replacement once full of accumulated ash. Others are designed to burn off the accumulated particulate either passively through the ...

3. Top Tier Detergent Gasoline - Wikipedia

   en.wikipedia.org/wiki/Top_Tier_Detergent_Gasoline

   To be certified as Top Tier, a gasoline must pass a series of performance tests that demonstrate specified levels of: 1) deposit control on intake valves; 2) deposit control on fuel injectors; 3) deposit control on combustion chambers; 4) prevention of intake-valve sticking. [4] Gasoline marketers agree when they sign on to Top Tier program ...

4. Diesel exhaust fluid - Wikipedia

   en.wikipedia.org/wiki/Diesel_exhaust_fluid

   Diesel exhaust fluid (DEF; also known as AUS 32 and marketed as AdBlue[ 3 ]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. DEF is consumed in a selective catalytic reduction (SCR) that lowers the concentration of ...

5. List of gasoline additives - Wikipedia

   en.wikipedia.org/wiki/List_of_gasoline_additives

   The EPA also regularly reviews the health and net economic benefits of Clean Air Act policies. [9] The act also requires deposit control additives (DCAs) be added to all petrol. This type of additive is a detergent additive that acts as a cleansing agent in small passages in the carburetor or fuel injectors.

6. Winter diesel fuel - Wikipedia

   en.wikipedia.org/wiki/Winter_diesel_fuel

   Testing the cold start capability of an engine after three days in a cold chamber. (car maker facilities in the UK, 1945) Winter diesel fuel (also known as winter diesel, alpine diesel, or winterised diesel) refers to diesel fuel enhanced to prevent it from gelling in cold weather conditions. In general it is achieved by treatment with ...

7. Fuel injection - Wikipedia

   en.wikipedia.org/wiki/Fuel_injection

   Contents. Fuel injection. Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of a fuel injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All compression-ignition engines (e.g. diesel engines), and many spark-ignition ...

8. Halfords - Wikipedia

   en.wikipedia.org/wiki/Halfords

   Website. www.halfords.com. Halfords Group PLC is a UK retailer of motoring and cycling products and services. Through Halfords Autocentre, they provide vehicle servicing, MOT, maintenance and repairs in the United Kingdom. [ 2 ] Halfords Group is listed on the London Stock Exchange.

9. Unit injector - Wikipedia

   en.wikipedia.org/wiki/Unit_injector

   Contents. Unit injector. A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a unit injector, the device is typically lubricated and cooled by the fuel itself.