Oil Sludge Oil Sludge is a major risk factor when it comes to vehicle malfunction. Learn more: General News Monitors could combat oil sludge. The Detroit News. September 6, 2004. Sludged. Automotive News. April 18, 2005. Engine Sludge – When good oil goes bad. The New York Times. February 4, 2007. Chrysler Doesn’t Budge On Sludge. The Los Angeles Times. December 15, 2004. Toyota Broadens Sludge Repair Program. Automotive News. April 8, 2002. VW Must Face Up To A Sooty Little Problem With Its Diesel Engines. The Cleveland Plain Dealer. March 21, 2004. Chrysler Doesn’t Budge On Sludge. The Los Angeles Times. December 15, 2004. Toyota Broadens Sludge Repair Program. Automotive News. April 8, 2002. VW Must Face Up To A Sooty Little Problem With Its Diesel Engines. The Cleveland Plain Dealer. March 21, 2004. Manufacturer News Chrysler Doesn’t Budge On Sludge. The Los Angeles Times. December 15, 2004. Toyota Broadens Sludge Repair Program. Automotive News. April 8, 2002. VW Must Face Up To A Sooty Little Problem With Its Diesel Engines. The Cleveland Plain Dealer. March 21, 2004.