How to choose flushing oil and fluids for engine flushing

With long-term operation of the engine in one oil, at non-compliance with the replacement intervals, as well as after the purchase of the former the use of the car when not only replacement intervals, but even and the brand of oil is often unknown, it makes sense to resort to help the so-called flushing. These are special oils and fluids having pronounced detergent characteristics that can dissolve soft deposits on the walls of the engine and effectively remove them from the system when changing oil.

how to choose flushing oil

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We recommend reading articles from an expert on choosing a motor oils and the secrets of choosing an oil filter.

Top manufacturers of flushing oils and fluids

Flushing the engine is a very responsible task. For, to avoid scoring on the cylinder walls, as well as clogging the oil sump mesh with large pieces of oil sludge, preference should be given to quality products from well-known brands:

  1. Liqui moly;

  2. Mannol;

  3. Mobli 1;

  4. Wynns;

  5. Castrol;

Pay attention to user reviews, tested specific products on your car and made relevant findings on performance. You can find them in Internet on specialized forums dedicated to motor oils and car operation in domestic conditions.

Types of flushing oils and technical fluids

Traditional flushing oils

Traditional flushing oils

They are base mineral oils with a powerful package detergent additives. Poured into the engine and used in it on 100-200 kilometers in gentle operation mode. In operating time affect deposits, gently washing and removing them out of the system.

Advantages

  • Simplicity of operation;

  • Inexpensive

  • Compatibility with many types of cars;

disadvantages

  • Not suitable for modern engines with direct inlet, requiring very liquid oil (0w20, 5w30);

  • For one procedure they are not able to completely clean the engine;

Long-term flushing of the oil system

LIQUI MOLY OIL-SCHLAMM-SPULUNG

They are special fluids containing powerful cleaning additive package. Add to the used oil for 150-200 kilometers to replace it. They clean the engine quite well from old deposits and oil sludge.

Advantages

  • Inexpensive

  • Do not change oil viscosity;

  • Safe for CPG;

  • They wash the engine well;

disadvantages

  • Roads

  • Do not allow intense driving and high revolutions;

  • They require compliance with the operating instructions;

Five minute rinses

Liqui Moly Engine Flush Bottle

Liquids containing a shock package of detergents and anti-wear additives. Added to the car directly when changing oil and suggest idle for 5-10 minutes. Wash off soft sludge and thinner harder deposits, the final work is done by fresh oil.

Advantages

  • Perfectly wash even old and hardened deposits;

  • They are used both independently and in combination with long-term flushing;

  • Do not harm the engine;

disadvantages

  • Quite expensive;

  • Complete draining of the liquid will not be possible, some part remains in the oil system;

  • Do not allow working revolutions and operation of the car, being flooded into the system;

  • Failure to comply with the rules of use can lead to bullies on the walls of the cylinders;

The main criteria for the selection of engine flushing fluids

engine oil selection criteria

The composition of the fluid and manufacturer’s recommendations for it application

In order to reduce to zero the risk of engine damage during the flushing procedure time must be given preference for proven products from well-known manufacturers, and also follow all recommendations for its use.

  1. Flushing oil and long-term flushing for the engine should be poured strictly at a certain interval and operate exclusively in a certain mode;

  2. A five-minute wash is poured into a preheated oil temperature, after which they start the car and give it work at idle for 10-20 minutes;

Composition and availability of a complete additive package

Make sure that flushing oil is either engine wash liquid contained not only a full range of detergents, but also effective anti-friction and anti-wear additives. The latter are needed in order to avoid scoring on the walls of the cylinder and make flushing process as safe as possible.

Flush or not?

Opinions among car mechanics on this issue vary. To resort the flushing procedure should only be done when the motorist doesn’t know in what mode the car was operated and what oil is in it flooded. For this purpose it is better to use quality long-term or five-minute rinses from Liqui Moly and others famous brands.

If the car is serviced in compliance with the regulations, recommended by the manufacturer, and the oil change interval is not exceeds 7-10 thousand kilometers, the use of flushing loses its meaning. In such a situation, experienced professionals recommend perform 2-3 oil changes with a reduced to 3-4 thousand kilometers interval, thus doing an impromptu flushing.

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In the next article, we will reveal all the secrets of choosing a quality timing belt.


Attention! This material is subjective opinion of the authors of the project and is not a buying guide.

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