You obviously missed this thread http://www.glaowners.com/forum/engi.../11690-gla250-oil-analyses-s-3-4-5-6-7-a.htmlI guess I am missing your "get your heads out of the sand" tag??
What is your point? Design and manufacturing issue? Driver issue ("heavy throttle/engine lugging/infrequent trips etc") or what.
I think you need to give more background and clarity to exactly what you are trying to say? prove? of what?
Think engine oil turning to sludge.... It still bothers me about the increase in viscosity, mainly because I have never seen that happen over time. ...
SSBGLA45, I will start by making this statement:
An automobile engine requires lubrication (in the form of engine oil) for purposes of efficiency, reliability and longevity.
Do you agree with this statement?.
(bellermb, I want to enjoy the GLA for a long time to come. That is what this is all about for me. Maybe you do not want to enjoy yours as long as I want to enjoy mine and therefore do not care about things such as this.
I to am an engineer who works with speed reducers and during critical failures also analyzes all possible modes of said failure including oil analysis...I am glad you want to enjoy your vehicle as I do as well and thats what I am going to do. Maybe you could explain your end game
Then seriously, post something not only on topic but constructive and please explain to me how such a rapid and massive fuel dilution to an engine's oil is not a detrimental condition.I to am an engineer who works with speed reducers and during critical failures also analyzes all possible modes of said failure including oil analysis.
First, let me say that I continue to hold out hope, however slim it may be, that there is some isolated condition with my particular unit that can be diagnosed and corrected by MB and/or the service department of my dealership. The service manager says she is clueless so it is up to MB to provide guidance. The issue is before them and I anxiously await a response.Maybe you could explain your end game
The overwhelming majority of gasoline used is from Costco (my best guess is that it is refined/blended by either Valero or Motiva with Costco adding their own additive package on-site), 93 octane, 10% maximum ethanol per labels the pump. The only time non-Costco gas is used is during an out-of-town trip.Can you provide some information on the fuel used....manufacturer? ethanol blend? do you use the same fuel all the time? I will pull a sample from my crankcase and have it analyzed with a lab we use and trust so I can make a independent comparison to the results you have posted in the past......probably won't happen till the new year though....