10w30 or 10w40 ??? Mineral or Synthetic ....

[myas110]

compare your engine oil with the water in your bath tub. you don't want to soak in it over and over. you will want to change the water as soon as you can

hindi ko magets yung message mo.

[jick.cejoco]

hindi ko magets yung message mo.

you don't soak your engine too long in dirty oil. if it needs to be changed, change it at the prescribed service interval regardless what oil or how expensive your oil was.

[dr. d]

compare your engine oil with the water in your bath tub. you don't want to soak in it over and over. you will want to change the water as soon as you can

yeah!
who wants to bathe in someone else's used bathwater?

[Wh1stl3r2]

the oil passageways are so small, thicker oils would have difficulty getting thru them?

Maybe. I don't really know, just thinking out loud hehe. But I'm sure fuel economy improves with lower viscosity oils. Yung lang, with eventual fuel dilution during use, the oil shears down to a lower viscosity which may not be enough protection for the engine. Sabi ni BITOG.

[Dezaremos]

10W30 are mostly mineral oil, 5W30 or 0W30 would be synthetic.

so i will just use 10w30 mineral oil for my 4afe because its an old engine ??? if 10w30 synthetic is thinner than mineral equivalent then it will possibly introduce leak on my old engine ????

[kagalingan]

so i will just use 10w30 mineral oil for my 4afe because its an old engine ??? if 10w30 synthetic is thinner than mineral equivalent then it will possibly introduce leak on my old engine ????

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Wag ka matakot sa leak kung maayos naman mga orings at gasket mo. Pag worn-out na palit ka lang gasket/orings.

Nagsimula kasi sa mga "sabi-sabi ng mga mechanico sa banawe" yung mga 20w50 at 15w40 na maganda daw sa philippine climate. For tractora ok mga ganyan viscosity. Pero pag sedan at suv ang ingay ng takbo makina pag malapot.

Honda philippines 1990s pa 10w30 gamit sa mga civic, city, crv, accord. Wala leak hanggang ngayon ilan years na civic ko palit lang oil pan gasket, orings.

[Walter]

If there's an engine leak, have the gaskets replaced, it's not the engine oil's fault.

[dr. d]

many years ago, we replaced our 20W50 mineral oil with mobil 1 synthetic. the engine leaked. we put back the 20W50. the leak stopped.
sometimes, the observation simply shouts too loud, you just have to overlook the logic.

[Gian Paulo]

If yung dalawang numerical figures ay bumaba or tumass (Currently using a 15W40) ano immediate effect nito sa engine during rest and running. Sorry might have been answered in some other threads. TIA.

Yehey got it explained already by Mr. G.
Oil Specifications Explained - What does 10w40 mean?