Quote:
Originally Posted by morepowerjoe
I believe what you could be experiencing is sticking piston rings. The reason I say this is because you only have 34k miles on your engine, so I think it's safe to say that your engine has been sitting around for a while. That and I'm not sure but I willing to bet you haven't changed your oil enough in the past either because you or previous owner thought it only has X amount of miles so it doesn't need to be changed. It needs to be changed at least yearly. I also don't think that there is anything wrong with your pcv stuff under the intake allowing more oil to accumulate in catch can, if anything I could see it being gunked up allowing less oil to get by it. So that only leaves one thing, your piston rings. There are a few successful people out there that have used a mechanic in a bottle to unstick rings but most are not successful in their attempts. A general compression test will tell you weather or not that is your problem. Sorry sir I'm sure this is not what your wanting to hear. You can google "low mileage engines with stuck rings" and read about it if you want.
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It may have possibly been the original owner(s). I got the car around 18k miles and have been changing the oil roughly every 5-6k miles or so. Not that the kind of motor oil I use could possibly cause any damage to the engine, but I usually use any of the Dexos emissions specific rated 0w-30 or 0w-40. If not, I usually run any Dexros or Euro spec 5w-30 or 5w-40, without issues.
And as I figured from the start, I’m definitely gonna get it compression tested eventually… For now, I’ll leave the catch can setup as is. I don’t think that putting back the “u”-shaped valve, is going to do my engine any favors, as it absolutely DUMPS oil into the intake manifold….
I wasn’t fully aware of sticking piston rings, but I see a lot of people taking out their spark plugs and then filling up the cylinders with ATF, Seafoam, Marvel’s Mystery Oil, or some sort of engine treatment/cleaner. And as far as oil “additives”, I’ve definitely tried my fair share, but I don’t think I’ve used enough, or at least added them to the cylinders (via the spark plug tubes). Some people even say to just beat the snot out of the engine, as a last resort (or first resort) method LOL (I think most of us probably have given it the “beans” at some point).
I do rarely drive this car hard, and I baby it most of the time on a daily basis. Even when I do drive “spirited”, it’s not more than like 2-4 WOT straightaway runs, back-to-back; or I’m out doing donuts and sliding my car around, usually in 2nd gear or 1st gear and not generally bouncing off of the rev limiter constantly.