Quote Originally Posted by innova2013 View Post
tanong ko lang Sir.

yung "cold" viscosity ng 0w40 na Mobil ay 75 cSt, "hot" naman ay 13.5 cSt

yung sa 15w40 na Mobil din ang "cold" niya 109 cSt, "hot" naman ay 14.5 cSt

kung marginal lang ang difference during cold flow, ilang percentage ba ang pinagkaiba ng 75 cSt sa 109 cSt?

base kasi dun sa datasheet, halos same lang sila ng viscosity during operating temperature. 1 cSt lang ang pinagkaiba nila.

sabi din kasi ni pareng Google, 80% ng engine wear nasa initial start up.

salamat.
CST reflects the time required for a fixed amount of fluid to flow through a certain sized orifice on the testing device

bro, it may seem technical and overwhelming yung info and numbers, its just says na kapag mas malapot ang oil mas matagal siya makapasok sa butas... lalapot siya kung malamig ang ambient temperature... eh kahit nasa baguio pa tayo eh hindi yan aabot sa freezing temp, so it will still flow sa orifices just a little bit slower if not almost the same to 0W to 5W...

we can never eliminate engine wear during start up, unless meh mainbento na oil na hindi mag settle sa oil pan...
its like us humans, we age we get sick... so ganun din engines, it will get old and will have breakdowns.

kung meh budget ka go for fully synthetics... and dapat dilemma is to go fully synthetics or not,
hindi na dapat pag isipan nang malalim kung 5w/10w/15w... "unless you want fuel efficiency"