asyed00i can challenge u even in court for misguing other pupil , u r just arguing for misguiding others, you dont have even
knowledge of footpath mechanics that's why u talk like this, footpath mech. hav more knowledge than u
u hav. inferiority complex & to overcome this u r trying to impose ur personal exp. without any logic or reseacrh
( it is better for u to read signature of whiteangel then open ur mouty)
i bet u & challenge u, u can go with any pakwheeler to any dealer in karachi any toyota,honda,suzuki,
ask them & rcord them that after how much mielage?? when they tell record & listen that one
also read manaul of any car & search time to change oil
u will find answer urself, u hav no education, no knowledge, ii am sursprised that how company hire such person who dont
know marketing, who dont hav. enough knowledge, no good education,no manners ( may be u bought mba degree from som private
institute)
it is the oil ingredients which makes certain chemical properties ( if u have read chemistry)
u havenot
API u dont know what API is u just have seen this API written on some oil that's why u r using that term (common illiterate
pupil's problem)
u even dont dont know that what is API ,what it stands for etc...m,why it emerges
API are not level, they are differnt standars for composition to meet engine's requirements.
u have cablent so u have wstae money to be wasting in searching over internet because illiterate pupil like u do this, dont
do homework just serach on internet, that's why they think like this
oil standards comes each ever to underatnable for layman like you who dont know that what is internationmal standard ?
atleast 9-10 months for research work required for researach,new srtandard,new products. in that period they gather
compain, they test completely ,after that they completely emerge
u have not enough education to undertand "commercial vehicle" just go to market & buy any dictionary of 15-20 Rs. & see
what is term comm. vehicle
any vehicle which is udused ofor earning purpose /business purpose by which you can help earning money then that is comm.
vehicle,
even if mehran comes in taxi in 800 cc. then it is comm. vehicle & govt. take extra tax on it
so comm. vehicle itself dont have any standard
i understand illiterate pupil commonly refer comm. vehicles as diesel cars but u r wrong
synthetic oil has higher sp. gravity & density. while mineral oil has lesser so when if synthetic oil used in older engine
then it will cause more wear & tear because engine already exposed to mineral oil & all pistons/rings are used to it
(because metals have tendency to respond to oxidation,reducing actions, carbonization etc.) so they respond to mineral but
if used synthetic ,that syn. oil will be hard for all ruuber,all sealed & that heaviness cause pistons,rings,seal,kits all
to be leak out so that's why pupil hav to flush engine if they plan to shift from syn. to mineral or vice versa
all metals hav tendency to change acc. to exposed environment,rust is simple exaple of curting of iron to ferric oxide
perhaps chemmical reaction is like this 9 class che. students reconfirm it. 4Fe + 3O2=2Fe2O3
so pistons & rubbeers when continously exposed to low categ. mineral oil, they have differnt ratio of oxidation,reduction,
but if u exposed them to high synth. oil thier all chemical prop. are dffernt so they will increase all this oxidation so it
will start losing efficiency,also metal will be seriously damage that's why flushing oil is needed to clear up the residue
of previous oil
funny u think that engine is like open teen dabba ,that's completely wrong (ACTUALLY U DONT HAVE ENOUGH EDUCATION &
KNOWLEDGE THAT'S WHY U R JUST ARGUING)
engine is completely sealed & there is vaccuum inside
if it is not then when u service ur car then all water, kerosene oil, even air will enter into engine & cause pressure &
engine will be stop
also if there is any opening then why do 4 litre or same litre drain out at service although u put same 4 litre oil at last
service
so try to think,use brain if u have.
do u studied physics or do u know what is sound?
even if u put small hole in ur silencer it will make enough noise, which is very far from main engine body so lets think if
u make small hole in ur engine, then so much noise will come which is enough to make u deaf.
also all engine pressure will lose, pickup will be decrease( oil may leak) & car stops
now another funny question why oil becomes dirty,
actually with passage of time oil chnages its chemical properties, its appearance ,color because of high temperature, also
oil is used for lubricationg
so in engine there r many parts, some plastic,some metals, some rubber,some seals, all when becomes hot, they giv wear &
tear & thier parts got wear & tear but due to high temperatre they converted into liquid thicker form
(for explanation study 6 class science book ,states of matter)
also refer 9 class chemistry book that at how temperature, rubber melts, metal melts,plastic melts?(all matter hav
melting/boiling point) but ur posts seems that u may hav not read all this, that's y arguing
so all this dirt mix with oil,also at time of pouring or addoing oil some small dirt,some sand also goes with oil,
so these all things make oil thicker & thicker & heavier & heavier& daily it becomes soo
so oil tending to lose its chemical & physical properties, its melting point may change etc. so its behaviour also varies
that's why engineers recommend that at 5,000 km or 3,00 miles it is enough time to change oil ( if u do it early no problem)
beacuse after 5,000 km every oil becomes little thicker & due to this it is load for engine to circulate /rotate that oil in
all engine parts bcoz all oil goes to all parts of engine, cause them lubricate & reduce friction
but due to thicker it will be heavier to circulate through all parts so all parts produce more friction ( & that's why due
to this extra effort sometimes temp. may increase)
so this heaviness causes more pressure on engine & difficult in circulation
also some parts are very delicate like seals of ruber, if they exposed to hi viscous they become torn out
that's why this is all reason for dirty oil
that's why for older engine it is not recomm. to use syn. oils
u r just giving ur post on your experience without ur education & logics, YOU R SUCH ILLITERATE PERSON who knows only
arguing
even if u have claimed that my mind is small, thanks Allah bcoz u dont have even that small mind,
u dont have even smaller/smallest mind ,although footpath mech. has more mind than you
( now it is alraedy slap on ur mouth whether u accept or not) if u ever go to school just read once again story of "GRAPES
R SOUR"
i am double sorry for you my friend for such mentality
synthetic oil in older model cars wont do any good to your engine ,now u should understand
now if u want to argue just for argue, i cannot say to this.. try to leran something from here, not just sending posts
....c123pk
leave him dear,here u will find many puil like this who dont hav. education,knowledge, trying to catch your words, trying to
find some weakness in your posts( bcoz they dont have any solid point due to lack of knowledge)
such pupil do crime themselves by wrong misinformation & blame others because they dont hav any scientifict reason to proof
thier argue
u can see signature of whiteangel
aur yaar hum to aisa he apne style pakis tyle mey baat karen gay
actually less educated pupil english likh & bol kar samajhtay hain key hum english waley ho gayee
( kawwa chala hans ke chaal apni bhe bhool gaya)
iam still proud of my language urdu & will continue to use roman urdu (because urdu script not available here)
anyway carry on dude
