Well its been a while since I posted here that my cylinder 4 misfire code came up. along with similiar issues mentioned in this thread

Today aprox 15,000 km later cylinder number 4 blew....fire out the exhaust and caught the back bumper on fire.

Have to do a teardown now to see what damage occured. End of the plug is smashed, Guessing busted piston and head gasket.

Compression test in cylinder 4 shows only 30 psi with all other cylinders in normal spec.