Wednesday, May 31, 2006

Concept of engine flushing and quality engine oil

Clean dipstick after long travel...

It shows that the oil is able to withstand longer drain interval after the flush... and the reason why is stays cleaner longer is because during the earlier engine flush, excess carbon, soot and dirt left by the old engine oil has been flushed out.... so the new oil is actually cleaning current dirt and not left over dirt....

Example, washing machine.... when you wash your dirty clothes, you put in laundry detergents, during the first rinsing stage you see that the water is dark, and full of dirt... then dirty water drained, and comes the second stage of washing, you see that the water is clearer, (depending on how dirty you clothes are....) then as you continue to go thru a few more stages, the water is cleared right...? So that means that the laundry detergent is working.... Very true...

Now the same scenario with clean clothings... You put it into the washing machine and repeat the above process, during the first stage of rinsing, you will find that the water is clear.... (of course with foam lar....) but does that mean that the laundry detergent is not working...? It just shows that the clothes are clean and no dirt is present to be washed...

The same concept applies to engine flushing... The water is the medium to carry the laundry detergent to wash the clothes.... without the water and only the dertergent, the clothing will not be able to be washed completely... similarly the base oil is the medium to carry the detergent and dispersant additives to clean the engine....

Thus, if the engine has been effectively cleaned/ flushed, it just means that the new oil has lesser dirt to clean and thats why the oil stays cleaner longer...

I remember in my school days in science class, there's this term called (larutan tepu) or saturated solution... the teacher asked us to go home, and make a glass of milk with milk powder.... first you add sufficient milk powder until it becomes milk... then continue to add more milk powder and you will find that the more milk powder you add, the more the milk powder will be unable to dissolve.... it shows that the fluid has reached its saturation point....

While the detergents additives are cleaning, the above example is equilavent to the dispersant additives that suspends the dirt, carbon and soot until the next oil change and when it reaches its saturation point, it will be unable to keep the excess dirt suspended if not changed within the recommended OCI.... and that's one of the ways how engine oil sludge forms...

0 Comments:

Post a Comment

<< Home