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Latest Discussions

  • Posted in: Open Forum

    The referenced SAE paper talks about the compression release valve used in commercial trucks for engine braking -- the so-called Jake Brake.  The second response says it is due to higher engine speed. The actual reason oil consumption increases when a passenger car engine is used to brake the vehicle ...

  • Posted in: Open Forum

    Answer to Simeon Iliev about engine braking and oil consumption: If you are engine braking there is a possibility of using oil because it causes the engine rpms to be higher. This in turn causes more of the oil to vaporize in the crankcase which will be evacuated by the emissions systems. This is also ...

  • Posted in: Open Forum

    https://www.sae.org/publications/technical-papers/content/2019-26-0288/ ------Original Message------ Hello Everyone, For anyone with deeper knowledge of internal combustion engines, can you please explain if and why engine braking for a car with a manual transmission could cause higher engine oil ...

  • Posted in: Open Forum

    Hi, I'm Isaac Van Baren, a senior studying Mechanical Engineering at Purdue University Northwest in Indiana. I currently also work as an intern with Northrop Grumman Corporation in California with the Fluid Dynamics/Propulsion section. My interesting fact is that I someday hope to work in the industry ...

  • Posted in: Open Forum

    Hello Everyone, For anyone with deeper knowledge of internal combustion engines, can you please explain if and why engine braking for a car with a manual transmission could cause higher engine oil consumption? I am interested in technical details to support or oppose the argument. Does it have to ...

  • Posted in: Open Forum

    Attila - thank you for providing the "grounding" for the sake of logic.  You're paradigm is focused.  Our chatter is driven in part by Marketing and our zeal for technical advancement.  Regarding the technologies you described, I can tell the group that Class 8 Heavy Diesel has benefitted because the ...

  • Posted in: Open Forum

    I think the term "Electric Nannies" is most appropriate and that we should honor Attila for it's coining. Al Metzel ------Original Message------ People don't realize , driving is a complicated set of skills , if you don't use it you loose it , in short . My biggest concern with all ...

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