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  #25  
Old 01-21-2012, 10:22 AM
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Re: Oil Consumption

Oil burner: Had a 2000 Olds Intrigue with 3.5 V6, DOHC, 24 valve. Was supposedly 75% of a Northstar V8, and it consumed some oil, 1 quart every 2500 to 3000 miles if I recall. . . . Also had an RX7 rotary designed to draw oil in with fuel air mix. Good luck with your dealer(s), they need to take care of this!
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Old 01-25-2012, 07:48 PM
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Re: Oil Consumption

Add a catch can, when the can fills up pour it back in. It's not hurting anything. Even less so if you catch it before it re-burns it. This is common in the LS based GM engines also. Seems most of the best engines burn oil. I'm not worried about mine.
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  #27  
Old 01-30-2012, 09:34 AM
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Re: Oil Consumption

Just noticed something very interesting and peculiar regarding the oil consumption. In addition to the cold start puff of oil coming out the tail pipes that I reported earlier, yesterday I noticed that it is also doing it at highway speeds. We took about a 60 mile trip out into the Mohave Preserve on I-40 west of Needles, Calif. I had a friend following me in his TJ. Speeds were at 70 with the cruise on the whole way. When we got to the exit and stopped, he said, "Did you know you have a puff of oil smoke coming out of both tailpipes about every minute or so?" He said it was really quite noticable. My only assumption is that it must be related to the MDS and is puffing the oil when either changing to cylinder deactivation (Eco Mode), or when switching back to 8 cylinder operation. The only way to be sure I guess would be have someone follow you with 2-way hand held radios, let you know when they see the puff, and you could check it agianst the Eco dash light. Don't know that it matters though. I plan to take it to the dealer this moring and have them enter a "Customer Reports" into the system for potential warranty issues later on. It kind of makes the whole 'Eco' thing seem ridiculous if you're running down the highway in your brand new Chrysler product puffing oil out the tailpipes. Bet the Ford and GM guys are grinning when they see it happen!
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Old 02-02-2012, 07:37 AM
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Re: Oil Consumption

This thread and the catch can thread need to be tied together. If you did a catch can like I stated above you could better track how much oil your burning. Or better yet you can prove if is the natural burn that is inherent in most every modern V8 on the market today(or normal like your dealer will tell you) or is yours really something to worry about... No GM guys are not giggling at you. They have this issue also. My vette needed one as did my truck and my older 4th generation Camaro's. Heck they have piston slap to deal with also. Dont know if the HEMI does or not yet...(knock for a few seconds on a cold morning)
There are tubes in place to allow some venting of air/oil mixture from the under the valve covers back to your throttle body. In turn naturally you will "burn oil" as you cannot vent this air without there being some oil in it. Down flaw here is this oil will catch small dirt particles and over time build up gunk! (main reason) The catch can allows the venting to happen as designed but catches the oil in a can rather than letting it recycle through your engine and be burnt, you just keep and eye on the can and drain the oil out. Basically it's acting as an Air oil separator. Want to make some cash?? Design the Air/oil separator with a float type valve in it that will drain caught oil back into the pan and sell it to the big three. They all need it!!! Not just us.
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  #29  
Old 07-17-2013, 08:44 AM
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Re: Oil Consumption

Not sure what to think about all the comments regarding the oil consumption. My 2012 Grand Cherokee has now about 30000 miles and I change my synthetic oil every 4000 miles and so far never was my oil level low or no need for top up's and I check about every 1000 miles or so. I need to mention that I really rev that thing to about 6k many times....runs like hell :-) I guess I must of broken the engine in very well
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