- Aug 24, 2009
- New Zealand
Hi guys, Long time reader, first time poster I've brought a Toyota runx z (toyota matrix 2zzge version in the state) mid last year with unknown service history at 92,000km. Oil was beyond black when acquired so first oil change was done with havoline dino 10w30 SN as I wanted to clean the engine out a bit. Second oil change was done with havoline again, open the rocker cover to change the lift bolts to find the black carbon/ vanish as shown below, I've wipe away what I can and it came off pretty easy. This was not good so I got some Amsoil engine n tranny flush, and fill it back up with edge 5w30 TI SL (FST) (there is no SN version down here). A year has pass (100,500km) and I've opened the rocker cover again to find that not much has change, any solution??? I've used oem toyota filter at all times, running on 95 octane, can do 98 if that's a solution and I do short trips about 10 min/8km each way to work. I do drive it hard sometime in the weekend. Would love to run PP or PU but choices here is pretty limited, I was thinking about going with mobil 1 5w30 in hopes that it will help clean up.