Physically, the original oil filter (made in Japan) printed lettering must be clear, bright and sharp. Plus the filtering look like the picture below.

Some imitation oil filter are not bright enough and even the text is blurred. The filtering system are soo different and have a few type, with steel, not vertical and so on. So be careful, the price is not that much different, but the most important thing is the filtering system.

Original Toyota Oil Filter, C6

The filtering , the original one, should look like this…

There’s also a new mentioned that C6 will stop production and will be replace with E2, made in Thailand. C5 will be replace with E1. Darn…the worst part is, the E2 model are wrapped up with steel kind of filtering, have to do some investigation and comments on this E2 that I’ve never used before.

E2 Oil Filter, made in Thailand

But this filter have a bypass valve..

If you wait too long to change the oil and oil filter, there is a danger that the oil filter might become plugged. To prevent a plugged oil filter from starving the engine for lubrication, oil filters have a built-in safety device called a “bypass valve.” When the differential pressure across the oil filter element exceeds a predetermined value (which varies depending on the engine application), the bypass valve opens so oil can continue to flow to the engine. But when the bypass valve is open, no filtration occurs. Any contaminants that find their way into the crankcase circulate throughout the engine and act like an abrasive producing accelerated engine wear.

Another option, is using the Perodua 15601-00R01 oil filter…just knew that we can use perodua oil filter…

But…i’m not quite sure whether it can be used on 4AGE or not…still looking for answers…
Please refer here : zerotohundred.com

Perodua