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An engine flush (in regard to an overdue oil change) is an additive that is put into the crankcase. Usually these take 3-5 minutes of the vehicle idling to dissolve gum/sludge/varnish deposits that build up when you go over the recommended interval. There is much dispute as to whether or not this service is any good at all. Some recommend using transmission oil instead of a brand of 'engine flush'.

A radiator flush, or transmission flush consists of an exchange of the coolant, or transmission oil. These are usually performed with a machine that hooks into your hoses or lines and when your vehicle is idling, circulates the fluid through the machine and transfers new fluid into your vehicle. These are recommended by the manufacturer at specific intervals.

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16y ago
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13y ago

I will make the assumption you want to do this while the engine is in the vehicle. This is a good idea, helps your engine cool off more efficiently and you will get better gas mileage and possibly a few more horsepower. First off, disconnect your battery ( negative terminal first) then cover your alternator in plastic and tape. Make sure your alternator is completely sealed in. Use engine degreaser ( available at most part stores ) to spray the block and engine components. Read the instructions and warnings on the degreaser, some are bad for rubber parts ( such as fuel lines, electrical wire insulation and spark plug wire insulation ) and take the necessary precautions. Let the degreaser do it's job by waiting the prescribed length of time listed on the degreaser can. Then hose off the block. You will probably have to use some rags and elbow grease to get off all of the gunk. Dispose of the refuse in a legal manner and once your motor is completely dry, take off the cover on your alternator and reconnect your battery.

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12y ago

First buy a can of flush to put in your engine oil. then run your engine for a few days to get hot and breakdown the sludge and varnish inside the engine. Change the engine oil while it is hot and refill with good quality oil. I always use castrol synthetic as a personal preference.

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14y ago

You need to get a specified engine cleaner that is made for taking off grease and oil.

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Q: How do you flush a car engine?
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Related questions

How do you find a heater core to flush it?

If your asking about a heater core for a car. you pretty much have to pull the engine to get at it. as it is part of the system, it should get flushed out when you flush the system.


How do you do a transmission flush on a car?

To do a transmission flush, first read the manual to your car. You will find out when you will need to do a transmission flush and how to do a flush.


Flush out heater core with dain cleaner?

NO!Do not ever put anything into the engine's cooling system that wasn't designed for a car.


What happens if you don't flush the radiator flush?

can crack the engine.


How do you flush the engine on a 1997 Honda Accord?

Do you mean flush the oil (not recommended) or flush the coolant?


Is an engine flush the same thing as a transmission flush?

No they are completely different. A engine flush will only clean the engine a transmission flush will only clean the transmission. These two components use two different kinds on fluid therefor they can not be mixed together.


Which hoes you need to disconnet to flush out radiator and engine please show pic please?

To get the correct answer for this question you must specify the engine type make model and year of the car.


Can you still drive if you haven't removed old oil after using engine flush?

Not far, anyway. The engine flush is not engine oil ... its only purpose is to, hopefully, clean the inside of the engine areas. That's why it's called "Engine Flush" and not "Engine Oil". Get it out and put the new oil in soon.


How do you do an oil engine flush?

Add Engine Flush to the motor oil at running temperature before changing the oil. After adding the product, allow the engine to idle for approx. 10 minutes. Then change the oil and the filter. Engine Flush is compatible with all commercially available motor oils. We recommend cleaning the engine interior with Engine Flush before every oil change.


How to flush radiator in a 92 Camry?

You can best flush the radiator on your 1992 Camry by taking it to a shop that has the proper equipment to do a complete fluid exchange while the car is at operating temperture. You cannot do a complete flush if the car engine is cold, because the thermostat blocks passages in the engine block. Flushing the radiator alone by removing the lower hose, recovering and disposing of the old coolant, and refilling is only part of the system. Thanks for reading. RM


Is 82000 miles a lot on a car?

No! That is good -BUT only if the car was maintained properly. It drives good.? If you buy it change the oil, transmission filter, and transmission fluid, and flush the engine and radiator coolant.


Can you damange radiator or engine by flush?

You will not damage the engine but you can damage the radiator if you use any high pressure. If you only flush and apply no pressure you will do no damage. Use a chemical flush and a water hose and you will be safe.