More 3.6 carnage

George Jets said
Nasty, Nasty, carbon buildup on these 3.6 engines.

I would be running Seafoam in the Gas and Oil as regular maintenance.

Lots of carbon on the piston tops and consequently in the ring lands too > stuck oil ring and lowering the compression.

Very complicated engines. Dual overhead variable cams, chain drive oil pump. Lower and upper oil pans.

Not to mention the failing valve seat and failing exhaust valve problems. Bad Heads.

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2003 Chysler 3.3 and 3.8 roller pushrod engines are looking pretty good right now. Much much simpler and easy to work on.

Hmm, maybe I'll look at doing a decarbon treatment on my mom's 300C with the 3.6 when I visit. Of course the oil would then need to be changed. Idk if the carbon buildup is really that bad on hers though, I was always good about changing the oil on time and when it gets driven it's usually far enough to get up to full temp and doesn't see much idle time.

It's such a common engine you have to remember, lots of regular drivers these days take short trips with lots of idling and go way past oil change intervals without a second thought.