Quote Originally Posted by Retz View Post
A little off topic:

Why is it that everytime we have our oil change, our engine response especially during the acceleration in 1st gear is excellent. After sometime, it becomes sluggish and at times you could feel the excellent acceleration as well but not consistent as it was when the oil is newly change. Based from what I have read, oil doesn't degrade as long as we observe proper OCI and the main reason why we change our engine oil is to avoid sludge formation. Based on that premise alone, what could be the reason popular known as "kulang sa hatak"? Is it the wrong type of oil that we use? of course, there are many other factors involved but let us just concentrate on oil in relation to an engine's performance. Your insights is much appreciated.

matagal din sir Retz bago ko nalaman answer sa tanong na yan.. hahaha...

From the First Pouring of a new engine oil into your engine, the oil still contains all the necessary elements that make it effectively promote the proverbial "malakas ang hatak/maganda takbo"

*these elements are the calcium, zinc, phosphorus, molybdenum, boron.... (which makes the BASE"alkaline" of the oil)

*the viscosity of the newly poured oil is still correct.... ( after usage, the viscosity changes, from being either sobrang
"malapot or malabnaw na")

*Over use of a lubricant, i.e. extended oil drains, will cause the base additives to lose their ability to neutralize acids
(reason why pag matagal na ang oil ay di na maganda ang takbo nang sasakyan...)

*oxidation of the OIL (any oil exposed to heat, pressure, and other elements will cause harmful by-products and affects the oils ability to lubricate) Lacquer Deposits, Metal Corrosion

*On not well maintained vehicles there could be water/ coolant contamination with the engine oil... (water and oil don't mix well)

*excessive fuel dilution occurs, the effectiveness of the lubricant is reduced (over rich fuel mixture dahil meh problem kotse)

*excessive fuel soot ( Wrong fuel mixtures especially with diesels and too much air particles sucked by the intake system)

pag bago pa kasi ang oil, all the parameters of the oil from its base elements, pour depressants, viscosity modifiers to other additives are still intact and correct....

after just some hours or mileage, these are already lessened , and as time goes by by using the vehicle these are further reduced to the point that the oil will no longer be able to provide its functions...

--With the use of better filtration and proper car maintenance (fuel/air/oil filter/tune up/spark plug/ fuel ratio) the OCI could be extended safely and reliably.... but no oil will last forever unless its "GTO OIL" hahahaha...