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Encyclopedia > Oil sludge

Numerous late-model piston engines from many manufacturers have suffered from failures due to oil sludge contamination. These problems happen when fine engine oil passages become clogged with sludge, and often result in catastrophic failure of the engine. 3.3 million Toyota engines were affected, as were 430,000 from Saab, 426,000 from Volkswagen, and an unknown number from Chrysler. Fixes include changing to synthetic oil, inspection, and even engine replacement. Components of a typical, four stroke cycle, DOHC piston engine. ... Motor oil is a type of liquid oil used for lubrication by various kinds of motors, especially internal combustion engines. ... Toyota redirects here. ... Saab 9-3 Sport Sedan Saab Automobile AB is a Swedish automobile maker, now owned by General Motors. ... ... The Chrysler Corporation is a United States-based automobile manufacturer, since 1998 merged with Daimler_Benz into DaimlerChrysler. ... A synthetic oil is an oil manufactured for enhanced lubrication performance using The Fischer-Tropsch process which converts carbon dioxide, carbon monoxide, and methane into liquid hydrocarbons of various forms. ...


Engines affected with oil sludge problems:

The Chrysler Corporation is a United States-based automobile manufacturer, since 1998 merged with Daimler_Benz into DaimlerChrysler. ... The LH engine was a series of V6 engines developed by Chrysler Corporation for its LH platform cars. ... The Ford Essex V6 engine A V6 is an internal combustion piston engine with six cylinders in a V configuration. ... Categories: Automobile stubs | Dodge vehicles ... The Chrysler Sebring is a line of mid-size automobiles sold by the Chrysler Corporation. ... 2000 Dodge Intrepid The Dodge Intrepid is a large 4-door full-size front-wheel-drive sedan. ... The Dodge Intrepid is a large 4-door midsize front-wheel-drive sedan. ... Saab 9-3 Sport Sedan Saab Automobile AB is a Swedish automobile maker, now owned by General Motors. ... The Saab H engine is a redesign of the Saab B engine. ... The straight-4 or inline-4 is an internal combustion engine with four cylinders aligned in one row. ... 2000 Saab 9-5 See also Saab 95 The Saab 9-5 is an automobile made by Saab. ... The Saab H engine is a redesign of the Saab B engine. ... Second-generation Saab 9-3 The Saab 9-3 is a midsize luxury-sport car made by Saab of Sweden. ... The Saab H engine is a redesign of the Saab B engine. ... Second-generation Saab 9-3 The Saab 9-3 is a midsize luxury-sport car made by Saab of Sweden. ... The Saab H engine is a redesign of the Saab B engine. ... Second-generation Saab 9-3 The Saab 9-3 is a midsize luxury-sport car made by Saab of Sweden. ... The Saab H engine is a redesign of the Saab B engine. ... Toyota redirects here. ... The Toyota MZ engine family is a V6 piston engine series. ... The Ford Essex V6 engine A V6 is an internal combustion piston engine with six cylinders in a V configuration. ... Late-model Toyota Camry (left) and Ford Excursion (right) The Toyota Camry is a large family car manufactured by Toyota in Georgetown, Kentucky, USA; Australia; and Japan. ... The Toyota Camry is a large family car manufacured by Toyota in the United States at Georgetown, Kentucky, as well as Australia and Japan. ... Toyota Sienna The Toyota Sienna is a minivan built in the United States for the North American market, and shares its platform and engines with the Toyota Camry. ... Japanese-market 1995 Toyota Avalon Australian-market 2003 Toyota Avalon Conquest The Toyota Avalon is a large automobile model produced by Toyota in the United States and Australia, originally based on the technology of the then-current Toyota Camry. ... under the hood of a Highlander The Toyota Highlander (called Kluger in Japan and Australia) is a model of SUV assembled by Toyota Motor Corp. ... 2001 Lexus ES300 The Lexus ES series is a family of midize sedans produced from 1989 to the present. ... First-generation RX 300 (Harrier) (xxU1x-series) Second-generation RX 300 (xCU3x-series) See also Lexus RX 400h/Toyota Harrier Hybrid The Toyota Harrier is a crossover SUV manufactured by the Toyota Motor Corporation. ... Toyota redirects here. ... The straight-4 or inline-4 is an internal combustion engine with four cylinders aligned in one row. ... Late-model Toyota Camry (left) and Ford Excursion (right) The Toyota Camry is a large family car manufactured by Toyota in Georgetown, Kentucky, USA; Australia; and Japan. ... The Toyota Camry is a large family car manufacured by Toyota in the United States at Georgetown, Kentucky, as well as Australia and Japan. ... 1978-81 Toyota Celica 1987 Toyota Celica GT Convertible 1993 Toyota Celica 1994-1998 Toyota Celica 2004 Toyota Celica GT-S with Action Package The Toyota Celica name has been applied to a series of popular sports cars made by the Japanese company Toyota. ... ... This page lists automobile engines that Volkswagen has used. ... The straight-4 or inline-4 is an internal combustion engine with four cylinders aligned in one row. ... 2005 B7 Audi A4 The Audi A4 is an automobile series made by Volkswagen Group, first sold in 1995 as a 1996 model and replacing the Audi 80. ... The Volkswagen Passat is a midsized car built by Volkswagen AG. It falls between the VW Golf/Jetta and VW Phaeton in the current VW production line-up. ...

References

  • "Saab adds engine warranty extension to cover possible oil sludge problems". AutoWeek. URL accessed on March 14, 2005.
  • "Oil sludge woes plague VW". AutoWeek. URL accessed on March 14, 2005.
  • "Consumer advocacy group says Chrysler V6 has sludge problems". AutoWeek. URL accessed on March 14, 2005.

  Results from FactBites:
 
Quick Change (971 words)
That is, oil which is poorly refined and inadequately treated with antioxidation and stabilizing additives.
Contamination of the crankcase oil with water, soot, lead salts, gummy resins, and acidic matter first cause the oil to become dark and dirty in color, but this is not actually harmful.
The low cooling jacket and oil temperatures, and the protracted periods of idle operation, which are characteristic of this service, frequently cause premature engine difficulties and possible failures.
Oil and water filter and process for dewatering oil sludge - Patent 4834889 (3022 words)
A mixture of oil and water then is pumped from the well and this goes to a series of tanks and settling basins where as much of the oil as possible is removed for processing.
The conditioned sludge is filtered and dewatered under 75-225 PSI consolidation pressure in the recessed plate filter press 24 pre-coated with diatomaceous earth to remove solids in the form of a well-consolidated, non-leaching filter cake.
The oil portion of the oil/water filtrate is recovered from a reservoir by decanting.
  More results at FactBites »

 
 

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