[Fot] Old Cars

[Bob Johns]

Someone was wondering when detergent oils were initiated.  I grew up right down the street from the Kendall Refinery, and the addition of detergents was a big deal.  The detergents addition to old curded engines was a problem as the curd could-would break loose and plug up the oil pump screen.  Any way, as I remember the switch over was 1951/1952 period.  It is hard to find non-detergent these days in the better grades of oil. 
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