Rick's Free Auto Repair Advice

Posts Tagged: engine flush

What is an engine flush?

Engine flush — What is it? Do I need it? An engine flush is a chemical wash of the interior of your engine. In theory, the chemical solvent dissolves carbon buildup and sludge deposits and leaves your engine cleaner. An engine flush can be performed two ways: Add an engine flush chemical to the oil sump and run the engine Generally, most pour-in engine flush products are added to the engine crankcase in the ratio of 10-oz. to 1-quart: 4-5-quarts of motor oil. You pour the chemical solvent directly into … Read More

GM service bulletin on Fluid flushes

GM service bulletin on Fluid flushes GM has issued a service bulletin 04-06-01-029E to address Transmission flush, engine flush, Unnecessary Flushing Services and Additive Recommendations on the following vehicles: 2011 and Prior GM Passenger Cars and Trucks (including Saturn); 2010 and or HUMMER H2, H3 2005-2009 Saab 9-7X Unless stated otherwise in your owner’s manual, GM states that “under normal usage GM vehicles do not require any additional procedures or additives beyond what is advised under the former Vehicle Maintenance Schedules or the current Simplified Maintenance Schedules. In addition, GM … Read More

Chrysler warning on fluid flushes

Chrysler warning on fluid flushes Chrysler has issued a service bulletin 26-004-12 warning against the practice of engine flush, transmission flush, axle lube flush, brake fluid flush, power steering flush, and refrigerant flush. Unless otherwise noted in your owner’s manual, Chrysler states that their vehicle fluid systems do NOT require regular flushing. They make an exception for instances where a malfunction has occurred or the system has become compromised, contaminated or overheated beyond the normal operating range. In addition, Chrysler does NOT recommend the use of aftermarket chemicals to conduct … Read More

Motor oil sludge

Does your engine have a buildup of motor oil sludge? If so, read this post to find out what causes it and what to do about it. This article is just one in a series. If you’d like to know more about oil click on the links below. Choosing the right motor oil Chrysler’s 3.5-liter engine has oil sludge issues High mileage oil and oil filters Oil Viscosity Warning Synthetic Oil Facts and Myths Synthetic oil versus conventional oil What motor oil to use What oil brand is best What … Read More

Engine flush

Should I get an engine flush? Shops are pushing engine flush services–Getting an engine flush is a terrible idea Some shops are offering customers an engine flush for around $150. The service consists of pumping heated cleaning solvents into the engine to “dissolve the sludge.” That may remove some of the surface deposits, but it merely softens the most severe trouble spots. Long after you’ve paid for the flush, the detergents in the new oil continue to break up the stubborn deposits. When that happens, the freed up grit can … Read More


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