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#1
06-25-2003, 04:09 AM
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Ok to run 0 or 5W-50 fully syn. in 86 190E to quiet lifters?
Or 0W-50 fully syn? Currently I have 10W-30 Mobil Fully Syn. The purpose would be to further quiet the lifters as they are noisy until engine is hot. My valve cover gasket has been recently replaced and I experience no oil leaks. Thanks
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Scott Chaffin Homepage devoted to my 190E: http://www.scotty-c.com 
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#2
06-25-2003, 09:35 AM
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Well, Mobil 1 0w-40 is on Mercedes' list of approved oils. It's not easy to find, at least where I am, but it could be a good bet for you. There are a few other 0 weight oils on the list, which you can see at the link below.
http://www.whnet.com/4x4/oil.html
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Tjohn 82 300 SD 77 450 SL (gone)
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#3
06-25-2003, 10:57 AM
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I would recommend against using a full synthetic oil in a high mileage engine to begin with.
Secondly, have you looked into the replacement of the tappets (lifters) ?
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1994 E500 (MY SUNDAY DRIVER) 1993 190E SPORTLINE LE W/ M104 SWAP 1997 C230 2002 ML320 2000 BMW 528I (WIFEY'S CAR) "Excuses are crutches for the unfounded."
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#4
06-25-2003, 11:17 AM
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Yes, I can have the lifters replaced. I am curious as to why a fully syn. would be bad for a high miles car though?
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Scott Chaffin Homepage devoted to my 190E: http://www.scotty-c.com
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#5
06-25-2003, 11:38 AM
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my 250SE runs fine on 5W40 fully synthetic. No oil leaks
 Though a week ago the head cracked. So i'm up for an engine rebuild.
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#6
06-25-2003, 07:25 PM
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Quote:
I'm not so sure it runs fine, not if the head cracked! Seriously though, not suggesting that the oil caused it. Sorry to hear of your bad luck. Scott, I think the lighter viscosity oil may help, but is not really the solution to the problem. My 190E also has a couple of lifters that are intermittently noisy until the engine reaches full operating temperature. I have found that the 15W-50 in the engine at present needs more time before the lifters quieten than the previous 10W-40. Lifters are not that expensive and I have every intention of replacing them. It needs a new valve cover gasket anyway and I am also tempted to do something about the blistered and peeling coating on the valve cover. Greg
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107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership). 107.026: 500SLC, 4-speed auto, thistle green, green velour. 124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex. 201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather. 201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex. 201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather. 
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