Mobil Super 2000 10w40 semi-synth vs Caltex 5w30 Synth-Blend

[Dezaremos]

Get the 10W40

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They say the only reason not to use synthetic or semi-synthetic in an old engine because it might leak due to old seals .. but my 4afe oil seals are new, camshaft seal, sparkplug seal, etc ..

Hindi ba rin pwede mag synthetic ?? Hindi ba pwede sa engine ko ang masyadong manipis like 5w30 ?? How about 5w40 ??

[Egan101]

5w40 will be just fine


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[jaggerx3]

They say the only reason not to use synthetic or semi-synthetic in an old engine because it might leak due to old seals .. but my 4afe oil seals are new, camshaft seal, sparkplug seal, etc ..

Hindi ba rin pwede mag synthetic ?? Hindi ba pwede sa engine ko ang masyadong manipis like 5w30 ?? How about 5w40 ??

5w40/ 10w40 would be fine.
I'd stick with semi synth pa din every 5k kms palit. Lalo pag medyo ma edad na engine needs tlc

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[Dezaremos]

5w40 will be just fine


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But 5w30 is not good ??

[Egan101]

But 5w30 is not good ??

If your car’s engine requires it, then use it. I use 5w30 fully synthetic on my turbo cars.


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[Lin Dan]

For an older engine, better use the 10w-40 than the 5w-30. The higher viscosity oil (i.e. 10w-40) has better film strength for hot ambient temperatures like ours.

[dr. d]

sometimes, the specification for thinner oil has to do with its better ability to squeeze itself into the minute oil passages of the engine, compared to heavier oils.

[StockEngine]

For an older engine, better use the 10w-40 than the 5w-30. The higher viscosity oil (i.e. 10w-40) has better film strength for hot ambient temperatures like ours.

ever heard of cooling systems?

FOCUS

[dr. d]

...to cool the engine?
heh heh.