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Mike_Schriber's avatar
Mike_Schriber
Explorer
Jan 26, 2017

Thoughts on oil change intervals (time, not mileage)

It seems to me that most everything you read talks about changing your oil every so many miles or every twelve months. I run Mobil 1 synthetic in my Ford V10 motorhome and typically change it every 5...
DrewE's avatar
DrewE
Explorer II
Jan 28, 2017
Huntindog wrote:
Can anyone tell me what year "round cylinder bores" were invented ?


Based on Knight's American Mechanical Dictionary, it seems that the first steam engine to use a piston and cylinder such as we would recognize was probably Newcomen's steam engine introduced in 1705. Pumps had used (presumably round) cylinders for much, much longer, dating back at least to Hero (ca. 150 BC).

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