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	Quick Change
		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.
	www.quickchangeinc.com /oilsludge.html (971 words)

	Oil and water filter and process for dewatering oil sludge - Patent 4834889
		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.
	www.freepatentsonline.com /4834889.html (3022 words)

	AMSOIL Corporate Website - December 2004 - The Price of Sludge
		Synthetic motor oils, because of their higher flash points and their ability to withstand oxidation and evaporation loss, are far more resistant to sludge development.
		In the letter, VW/Audi recommended synthetic 5W-40 engine oils that meet the VW 502.00 spec because the use of petroleum oils increases the risk of sludge formation.
		Sludge is a waste of time and money that is no longer necessary.
	www.amsoil.com /articlespr/2005/article_sludge.aspx (1076 words)

	OilOnline - The Original Online Source for the Oil Industry (Site not responding. Last check: 2007-10-04)
		Oil sludge is characterized with its variety by physical and chemical properties depending much on a storing period in settling tanks and pits.
		Sludge treatment facilities of petroleum refining and petrochemical industries generally apply the approach of high velocity separation.
		For sludge treatment at oil fields using the pit technology it is advisable to use mobile sludge treatment unit with output capacity 5 to 15m
	www.oilonline.com /oilcapital/tek_22_1205.asp (401 words)

	Why Treat Your Fuel Oil? by Paul F. Schmidt
		The sludge particles are formed principally by blending and mixing fuel oils of different types, either at the refinery or in the consumer's tank.
		It is extremely difficult to dissolve fuel oil sludge once it has formed, unless excessive quantities of solvent are used, as several times the quantity of sludge present would be necessary.
		The emulsification of water means breaking the surface tensions of both the oil and water, so as to obtain a stable mixture of minute water droplets in the oil globules.
	www.alken-murray.com /WHYTREAT.HTM (828 words)

	Oil Plus - Oilfield Chemistry/Sludge
		One particular type of sludge that is becoming more prevalent is the family of naphthenate and fatty acid soaps that can manifest as emulsion sludges or as deposited solid scales.
		Oil Plus has extensive experience as a leading oil industry consultant on the diagnosis of such materials, in setting up monitoring programs for them and in determining the most effective operational and chemical treatment solutions, for control and mitigation of problems caused by such naphthenate sludges.
		This is even more critical for oilfields with suspected soap sludge/scale problems, as the understanding of the fluids and sludge chemistry is absolutely crucial to successful and timely identification of the most suitable treatment and control option for a specific facility.
	www.oilplus.co.uk /oilfieldchemistry/sludge.htm (503 words)

	Motor Oil Myths and Facts
		A non-detergent oil would stay clearer than a detergent oil because all the soot would be left on the internal engine parts and would create sludge.
		Pumping the oil out through the dipstick hole is a terrible way to get the old oil out because it leaves a lot of junk in the bottom of the oil pan.
		Be extremely wary of synthetic oil companies that offer to pay for your repairs if it is determined that their oil and their extended change interval recommendation caused the problem.
	www.nordicgroup.us /oil.htm (4844 words)

	Oil Filter Crusher Article (Site not responding. Last check: 2007-10-04)
		The EPA law does not require all of the oil to be removed from the filter element for re-classification to solid waste, but does require most of the oil or about 95% of the oil and sludge be removed.
		Also the American Petroleum Institute study shows that residual oil generally remains in the filter as a result of the anti-drain back valve, oil saturation in the filtration media, and through molecular bonding to the metal.
		If the used oil filter is drained and crushed to remove as much of the oil as possible, the oil is managed according to the standards set forth in the Federal Law 40 CFR, Part 266.
	www.filtercrusher.com /oil-filter-crusher-article.htm (1617 words)

	CorpWatch : VENEZUELA: For Venezuela, a Treasure in Oil Sludge
		Then on May 16, the National Assembly raised royalties on the four heavy crude oil projects of the Orinoco to 33.3 percent, from 16.6 percent, and is planning to increase taxes to 50 percent, from 34 percent.
		Oil prices were low, world supplies easily met demand and Venezuela had on its hands a crude oil so heavy, so filled with impurities, that it was not even known as oil, but rather bitumen.
		Venezuelan officials say their measures are enshrined in a 2001 law that says the state oil company must have a 51 percent stake in projects; they sidestep questions about previous contracts being grandfathered in.
	www.corpwatch.org /article.php?id=13652 (1706 words)

	Bedeviled by sludge \| The San Diego Union-Tribune
		Sludge is gelled oil that fails to lubricate engine parts.
		Sludge complaints also can be categorized under the broader category of engine stalls or stops, which have many, many more entries, says NHTSA spokeswoman Liz Neblitt.
		One sludge sufferer said his claim was rejected because he changed his oil 36 miles beyond the stated interval.
	www.signonsandiego.com /uniontrib/20050514/news_lz1d14sludge1.html (1556 words)

	Volkswagen owners receive sludge warning \| The San Diego Union-Tribune
		VW is requiring its dealers to use synthetic oil and a larger oil filter in the 2005 Passat and A4.
		Oil changes would have to be according to VW-recommended maintenance schedules.
		The letter states that engine oil sludge occurs when old, dirty engine oil thickens and cannot continue to provide correct lubrication.
	www.signonsandiego.com /uniontrib/20040904/news_lz1d4sludge.html (579 words)

	Oil Change Express - Welcome
		And did you know that the additive package, which is part of your fully formulated motor oil, will break down in time and become a contaminant.
		As contaminants are whipped into the oil, sludge is formed.
		Neglecting oil changes is hazardous to your engine's health, especially if you drive under severe driving conditions, which most people do.
	www.oilchangeexpress.com.au /motor_oil.htm (424 words)

	Oilzapper: Eliminate crude oil spills, manage oily sludge (Site not responding. Last check: 2007-10-04)
		Oil spills are a major menace to the environment as they severely damage the surrounding ecosystems.
		Oil spills on land pose a three-fold menace: fire hazards, groundwater pollution due to percolation, and air pollution due to evaporation.
		Crude oil and oily sludge degrading efficiency of the developed bacterial consortium was tested under laboratory conditions and field conditions.
	static.teriin.org /case/oilzap.htm (1151 words)

	Mikes Oil sludge info (Site not responding. Last check: 2007-10-04)
		If the oil did not cause the problem the warranty cannot be voided, regardless of the brand of oil used, viscosity, or the length of time or number of miles the oil was used.
		The oil is still fine to use, I feel that once the TBN becomes borderline depleted (2 for me) it is drain time.
		Oil rejection depends not only on TBN drop but also on factors such as: Viscosity drop / increase, fuel dilution, water content, build up of insolubles etc. Unfortunately, no engine manufacturer gives proper guidance on the subject, which should be given after field trials.
	home.comcast.net /~94gsxr1100/lexus/oil/oil_sludge.htm (1830 words)

	Bay area drivers among those stalled by oil sludge problems (Site not responding. Last check: 2007-10-04)
		The St. Petersburg couple was told their engine blew due to a build-up of oil sludge.
		That's when the oil inside the engine becomes so thick it gels up, reducing the flow of oil through the engine and causing excessive wear or a failure.
		The problem is caused by one of two things: not enough oil changes, or the engine not being built right -- the oil passages too small or bent.
	www.abcactionnews.com /stories/2005/02/050223oil.shtml (542 words)

	Oil sludge - Wikipedia, the free encyclopedia
		Sludge can be a major contributor to engine problems, and can require the engine to be replaced if the damage is severe.
		Sludge is usually caused by the presence of water in the oil, and can accumulate with use.
		Ways to minimize sludge production and accumulation include performing frequent oil changes, using synthetic oil, and following the manufacturer's engine maintenance routine.
	en.wikipedia.org /wiki/Oil_sludge (155 words)

	Sour water stripper, oil sludge treatment and processing - RM Oil (Site not responding. Last check: 2007-10-04)
		The sour water was collected in one of two tanks and allowed to settle for a day, the free oil was skimmed off and then, the supernant was drawn off from level 6 ft from the base of the tank.
		The oil was from a spill, from a crude tanker off the coast of Sweden.
		The level of oil was between, 8-16% by weight.
	www.rm-oil-services.com /case-studies (345 words)

	Oil Sludge - Dodge Dakota Quad Pickup Problems
		Probably because the filler cap assembly extends away from the warmer/hot engine condensing the oil and water vapor mix on the cooler plastic filler assembly.
		Well in any case this mix makes sludge, which looks that if enough of it drains into the engine it can be destructive to the engine components.
		The dealership already had the replacement parts(a oil cap with a flat bottom, and baffles that go in the filler tube)and this will resolve the problem per dodge that was due to condensation build up.
	www.eastplaza.com /mem/dakota/problems/oil_sludge.htm (497 words)

	Y2KOTA - Oil Foam in Fill Tube
		In the 4.7L motor, the oil fill tube is in the front of the motor.
		In colder parts of the country, moister produced by the blow by gases, condenses in the oil fill tube due to cold air passing by it.
		This is with AMSOIL oil in the motor.
	y2kota.us /oft.html (338 words)

	44 oil spills found in southeast Louisiana - Hurricanes Archive Section - MSNBC.com
		The oil could threaten the region’s fragile coastal marshes, but three-quarters of it was not posing a danger to wetlands, the Coast Guard said, noting that more than 1.3 million gallons had evaporated or dispersed.
		Nearly all of the oil leaked near the Mississippi River south of New Orleans and was contained by earthenberms designed for that purpose, said Capt. Frank Paskewich, federal on-scene coordinator for the Coast Guard.
		Only a few minor oil sheens, thin enough to evaporate in the sun, have appeared on the river so far, he said, and they probably came from small watercraft that sank in the storm.
	www.msnbc.msn.com /id/9365607 (1307 words)

	OIL FIELD TEKNIKS
		Novel concept of tank bottom sludge cleaning with the use of aqeous phase solvents, eliminating the need for using hydrocarbon solvents.
		The trial bio remediation of oil sludge at the Hindustan Petroleum Corporation Limited, Devanagonthi installation, Bangalore, India has commenced on 3rd April 2006 with the permission given by the Karnataka State Pollution Control Board.
		After monitoring the status and reports, further quantities of sludge are likely to be alloted for treatment.
	www.oilfieldtekniks.net (239 words)

	Oil Sludge Problems Plague VW & Audi A4 - Club Lexus Forums
		The company sent the letters after receiving reports of engine-component problems relating to oil sludge, a buildup of old, dirty engine oil which can deter engine lubrication, the story said.
		Probably another case of either people not changing their oil often enough or the manufacturer recommending too-long change intevals for the conditions under which the engines operate.
		Using full synthetic oil, of course, can alleviate some of these problems, but many people balk at the expense of using it....and in most engines, most of the time, in most moderate-climate areas, it is probably not needed.
	www.clublexus.com /forums/showthread.php?t=132442 (1453 words)

	Delta Obtains Project Financing for Oil Sludge Processing (Site not responding. Last check: 2007-10-04)
		Preliminary analysis of the sludge has indicated that approximately 50% is recoverable as low-grade oil that can be currently sold at about $140 per ton.
		Oil sludge, an ongoing byproduct of refineries and present in oil storage tanks, will now be processed and will become the property of Tryhuda-Envirotech.
		Preliminary analysis of the sludge has indicated that approximately 50% is recoverable as low-grade oil that can be currently sold at about $140 per ton," involve risks and uncertainties.
	www.primezone.com /newsroom/?d=76000 (691 words)

	Oil Sludge and Engine Failure with the Dodge Intrepid 2.7l DOHC V6 engine (Site not responding. Last check: 2007-10-04)
		The oil sludge is produced by an apparent design defect with the 2.7-liter engine.
		The Center for Auto Safety - "Sludged" - Founded by Ralph Nader, the Center for Auto Safety (CAS) is a powerful pro-consumer organization that lobbies Congress & gets involved in legal battles with automakers.
		The CAS has written several high-profile letters to Daimler Chrysler CEO Dieter Zetsche in regard to the oil sludge problem with the Dodge Intrepid.
	www.oilsludge.com (597 words)

	Toyota Owners Unite for Resolution: Engine Oil Sludge Petition (via CobWeb/3.1 planetlab2.cs.unc.edu) (Site not responding. Last check: 2007-10-04)
		Oil analyses of some owners' engine oil reveal low viscosity and high nitration and oxidation within the manufacturer's recommended oil change interval.
		These executives state that they are "not aware of engine sludge in cases where owners have properly maintained their vehicles." These same representatives say that there are very few cases of engine oil sludge in the affected engines.
		The Toyota Owners Unite for Resolution: Engine Oil Sludge Petition to Toyota Motor Corporation was created by Toyota Owners Unite for Resolution and written by Charlene Blake (cblake@erols.com).
	www.petitiononline.com.cob-web.org:8888 /TMC2003/petition.html (1184 words)

	cbs2chicago.com - Oil Sludge An Increasing Problem For Drivers
		Thousands of drivers are getting stuck when their oil gels, causing engine failure and expensive repairs.
		When she brought it in for repairs, "that's when they told me that it was sludged," she said.
		Sludge is gelled oil that builds up in the engine.
	cbs2chicago.com /consumer/local_story_186173026.html (554 words)

	cbs5.com - Drivers Warned About Oil Sludge
		Sludge is gelled oil that builds up in your engine, and the caked-on substance often causes extensive and expensive damage.
		Mechanics say sludge is becoming a very common and costly problem.
		Automakers say cars become sludged when you don't change your oil often enough or use the wrong kind oil.
	cbs5.com /topstories/local_story_208201814.html (396 words)

	USATODAY.com - Toyota to repay customers with oil-sludge problem (Site not responding. Last check: 2007-10-04)
		Toyota says the problem is caused by going too long between oil changes, but nevertheless says it is changing the engine design to prevent a repeat.
		Hanson says the problems have been concentrated where winters are extremely cold and summers are especially humid and among owners who make a lot of short trips.
		Hanson says the company is making an immediate change to its V-6 engine that will give a wider margin of error if people wait too long to change their oil.
	www.usatoday.com /money/autos/2002/04/04/toyota-sludge.htm (380 words)

	Rip Off Report:Toyota Motor Sales, Inc. Engine Oil Sludge (Gel, Oil Build Up, etc.): Owner Neglect OR Design Flaw? ... (Site not responding. Last check: 2007-10-04)
		This oil, by the way, is sold at the Toyota dealership and tested with a reference sample.
		I'm talking every gasoline fill-up oil check is not adequate with these engines rapidly depleting the oil as it is. Nonetheless, many of these owners are being blamed for not checking their oil often enough.
		The short of the story was the dealership said the there was no oil in the car and what little there was had turned to sludge.
	www.ripoffreport.com /view.asp?id=21562 (4861 words)

	Engine Sludge/Oil Gelling--Toyota's Customer Response - CarSpace Automotive Forums (Site not responding. Last check: 2007-10-04)
		it just happens that with this type of design 3k is a sure thing and 5k with a good quality oil is not unreasonable but must be decided by interpretation of whether you're doing severe driving or not.
		A Toyota dealer were the van was towed to said the left cylinder head and cam (they didn't say both of them) were scored and need to be replaced.
		I would like to think that this interval was based on their own engineering design criteria (and not based on marketing as Cliffy1 theorized in the previous sludge board).
	townhall-talk.edmunds.com /direct/view/.ef0adfa/40 (1304 words)

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