Recent content by Mephy

I did not read yet the link that you posted, I try to give my explanation I might be wrong. The efficiency is the ability to filter + the flow rate.For sure when the filter ages the flow goes down but the size of particulates that can filter should be better since the micro pores of the filter...

Take into consideration that the oil filter, as it ages, increases its filtration capability.

I had the same engine; the oil consumption is due to the bad PCV Valve. I use Mobil 1 0W-40 with no issue apart from oil consumption

Generating yet another thick-vs-stupid thread

Point 1 makes sense; I use Amsoil for its unbeatable performance on long drains.

New Signature Series ?

I choose Amsoil because I travel.

If for you money is not a problem, go for Amsoil 0W-30 Signature Series, you will be more than ok at 10.000km Oil Change.

Go only with a good 5W30, Hyundai - Kia engines want thick beef.

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I see a lot of debate on this forum, thin vs thicker oil. I chose to go on thicker oil, first because Kia - Hyundai had big problems with thin oils in the past, I don't know now. Second, a basic concept that nobody seems to mention, the abrasive effect of particulate in the oil, thin oils...

You nailed it is just cafe valid only in North America. use 0W30 I do on my Honda Civic 1.5 Turbo.

On my Kia, I went 1 grade up the recommended on oil cap 5w-20. I put 5w-30 since Hyundai Kia engines struggle with 20.

First can be the PCV valve that doesn't release the pressure in the crankcase, so replace it. The second is oil grade too thin, with Kia, you need a thick beef. I have Kia too

Mobil 1 ESP 0W-30 is a relatively thin oil for 30W, with an HTHS of 3.0. It is the best choice. Mobil 1 5w30 HTHS 3.2 Mobil 1 euro HTHS 3.5