I used to run alot of machines,cutting metal. Screw machine oil was thicker than this 0w20 oil in my sons new mazda. Can't they run something heavier for protection?

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

The newer engines are built with much tighter tolerances so thicker oil would probably cause problems.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

read something from another forum about these new oils.They are light so they can achieve the mandated fuel ratings.Bluetec diesels came with 5w30 oil.It is causing the failures on the engines.15w40 should be used in summer, or better yet 20w60 motorcycle oil. Motorcycle oil has all the goodies they took out of oils,for polution. Bluetec timing chain failure are do to thin oils,and turbocharger failures.Also I was right in removing my engine covers,and belly pans.The bluetecs are melting gaskets,o rings,and motor mounts because of retained heat.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

I haven't heard of any gaskets on MB diesels failing due to heat - I do know that early OM642 owners (like myself) inherited problems with seals made from an inferior material that shrank over time and cause oil leaks. The timing chain failure seems to be limited to those built sometime around the 2010-2013 era, which has been tied to chain stretch, not lubrication failure. Turbo problems, well those seem to be limited to variable geometry portion of the turbo getting stuck - not really a part that's lubricated with oil (though I could be wrong). Also haven't specifically heard of any problems with loss of lubricity due to the oil being too thin - the lubrication problems I've heard of are due to sludging - some speculating that the oil is either being ran too long, or becoming contaminated from operation.

What I do know is that my OM642 does require a fair bit more service than say an OM617 or OM603, but it's all in the name of efficiency. I get 30MPG on the freeway with the AC on, and normally get 22-23 in the city while commuting. It's definitely warm under the hood, but not abnormally - at least not compared to other new cars. I use/abuse the heck out of my diesel, and haven't really had any issues!

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

hope this link www.stephensservice.com then click blog

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

my boy works for Malhe,and did you know some new gas engines are get steel pistons.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Whats the idea there?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

don't know,they are making cams different too.Machining lobes,then press on,and weld.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

He did mention that the OM642 needs more maintenance than usual, and most folks cut corners.

I stopped reading when I saw "Add “engine oil flush” to the old oil before you drive to the shop. "....

Uhhh, no.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.

iworck don't blame you for engine flush either.I don't want a solvent in my engine.Now the old days some used ATF as it had high detergents. But I will start researching motorcycle oils. Seems they could be good,as some are air cooled.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

This is lighter.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Now Ford was having problems,as they just froze the shaft then pressed on the lobes.In some engine they work loose,destroying valves,and cam gears,have spun.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

My 0ld 59 Ferrari had cams carved from billet. the center was drilled out. Very light but very strong. only disadvantage of this construction is cost.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

I just lookup the international recommendation, e.g. mazda mzr engine found in the early 6, ford fusion, focus etc etc. are specced for 5w20 in USA and 5w30 elsewhere.

The turbo mazda mzr is specced for 5w40 - but is serviced with 5w20 in USA, engine failures are higher in the USA too.

co-incidence??

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

wow,my son who always agured that the builder knew what they were talking about,now agrees with me.
I read where they really want you to trade every five years./

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1999 w140, quit voting to old, and to old to fight, a god damned veteran