Tama yung explanaiton ni dvldoc dati na pangit pag masyado mataas na molybdenum.
Frequently Asked Questions about Motor Oils / LN Engineering - Knowledge Base LN Engineering
IS THERE MOLY IN MY MOTOR OIL? IS MOLY BAD FOR MY ENGINE?
From our testing, most SM oils have some level of boron and moly to make up for the lower level of Zn and P and is now more commonly found in SM oils and CJ-4 oils. In the development of long-life motor oils with reduced Zn and P, organic soluble moly has been added to help neutralize oxides formed in the motor oil from byproducts of combustion in addition to its use as a friction modifier to improve fuel economy and reduce engine wear in GF-4 and energy conserving oils. Some brands of oils have more moly than others, with Redline and Royal Purple using significantly high levels of moly in their lubricants. Some oil manufacturers claim that the addition of moly can reduce friction up to 38%, reduce bearing wear up to 60% and reduce overall operating temperatures.
On the flip side, some advertise their product does not have moly intentionally, claiming moly is an abrasive and deposit forming, which are both true in as much as ZDDP, although forming good anti-wear films, it increases friction and the oil's traction coefficient. CMW Oil is one of the most vocal proponents of the elimination of moly all together from motor oils and does not use any moly friction modifiers in its street, race, or fleet lubricants. CMW is not alone in their recommendation against the use of moly in oils, with Cummins Engine Oil Recommendations, Bulletin No. 3810340-02, stating that "there is firm evidence that certain friction modifiers, molybdenum dithiophosphate for example, can in certain formulations result in cam follower pin failure at relatively low mileage." Also, molybdenum compounds in motor oils can degrade and cause bearing corrosion and is particularly aggressive towards copper. In almost all cases, any engine oil formula having "moly" will also contain a copper deactivator which will protect bearings from the moly compounds. The only problem, the copper deactivator decomposes at relatively low temperatures and looses it's potency after a few thousand miles, which can be seen in used oil analyses of moly rich oils having higher than normal copper levels. Additionally, there is documentation in various SAE publications showing a vast number of different species of moly friction modifiers, some providing better wear than fuel savings and vice-versa, and unfortunately, there is no easy way to determine how a friction modified oil is formulated other than to assume that a GF-4 and now GF-5 also known as energy or resource conserving oil is most likely to bias fuel savings for lower wear protection in thinner oils, like the aforementioned 5w20 viscosity so many import and domestic engines now require to meet CAFE requirements. Furthermore, the addition of start-stop technologies almost certainly require the use of zero weight oils to ensure immediate oil flow to prevent accelerated start up wear.




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mas pangit yung mumurahing oil dahil ginagandahan ang mga oil analysis para lang bumenta. yung mga malalaking kompanya may R&D yan at nakikita mo na ginagamit sa malalaking racing circuits. bottomline depende pa rin yan sa bulsa mo kung anong afford mo. hindi naman alam nung makina mo kung rp oil. liquid moly o sick oil inilagay mo
