Quote Originally Posted by regor_nono View Post
Hi fellow tsikoteers!

I own a 2006 1.6 Corolla Altis with a 3ZZ engine, which is infamous for being a sludge monster. I've almost read the whole thread and by the looks of it, almost everyone is sold to the idea of using quality filters ang going 10,000 KM or more for OCI, with 100% synthetic oils, of course. I've also recently read joeasp's post of using the BT223 in their 2E corollas and still having nice oil texture in his 3,000 KM visual oil test. Has anyone attempted to go 10,000 KM OCI on a 3ZZ with BT223 and still have good oil/motor condition? I can't attempt it, too scared!

TIA!

you just need to be really curious to find out! pretty much like what I deed when I used the fake fleetguard filter....