Originally Posted By: OVERKILL
Originally Posted By: timeau
Originally Posted By: OVERKILL
The consumption should taper off. It is common to have some consumption when switching between brands.
Could you explain this phenomenon?
Likely has to do with the fresh oil stripping off some of the AW layer from the old oil and putting on its own, which results in some of the product flashing/burning off.
This is told by you, not me. So you agreed that mixing oils from different manufactures is not the best idea. Yes, I know about all standarts, on papers oils are compatible one with another, but mixing beer and wiskey in the same glass tends to severe morning headache.
Now look slightly deeper than CELICA_XX usually does. What is a flushing oil? This is a special oil with almost no additives. It's primary goal is to flush the rest of "old" additives to prevent their reaction with new additive packet. Also flushing oil has some dissolvers that cleans engine from inside. Then when new oil is added, no chemical reaction is possible, same as all particles and varnish is cleaned too. Does it make sense now?
Then you wrote:
Originally Posted By: OVERKILL
If something is already clean, attempting to make it cleaner is pointless. The only time that cleaning is beneficial is when there is something that needs to be cleaned up.
Please, take a look on the topic title. If the car already consumes 1 liter per 5000 km, is engine clean or not? Are rings OK or not? Are oils drainages OK or not? So does this engine have something to be cleaned or not?
I have one more argument. If you look on most UOA precisely, you will definitely see that almost each car consume oil. Why? Because nobody cares about proper oil changing procedure. Dry engine of my Toyota takes 7 quarts of oil, but in fact no more than 6 could be drained out. Flushing oil solves this "feature".
Originally Posted By: timeau
Originally Posted By: OVERKILL
The consumption should taper off. It is common to have some consumption when switching between brands.
Could you explain this phenomenon?
Likely has to do with the fresh oil stripping off some of the AW layer from the old oil and putting on its own, which results in some of the product flashing/burning off.
This is told by you, not me. So you agreed that mixing oils from different manufactures is not the best idea. Yes, I know about all standarts, on papers oils are compatible one with another, but mixing beer and wiskey in the same glass tends to severe morning headache.
Now look slightly deeper than CELICA_XX usually does. What is a flushing oil? This is a special oil with almost no additives. It's primary goal is to flush the rest of "old" additives to prevent their reaction with new additive packet. Also flushing oil has some dissolvers that cleans engine from inside. Then when new oil is added, no chemical reaction is possible, same as all particles and varnish is cleaned too. Does it make sense now?
Then you wrote:
Originally Posted By: OVERKILL
If something is already clean, attempting to make it cleaner is pointless. The only time that cleaning is beneficial is when there is something that needs to be cleaned up.
Please, take a look on the topic title. If the car already consumes 1 liter per 5000 km, is engine clean or not? Are rings OK or not? Are oils drainages OK or not? So does this engine have something to be cleaned or not?
I have one more argument. If you look on most UOA precisely, you will definitely see that almost each car consume oil. Why? Because nobody cares about proper oil changing procedure. Dry engine of my Toyota takes 7 quarts of oil, but in fact no more than 6 could be drained out. Flushing oil solves this "feature".