this was a quote:
"As early as 1953, Los Angeles County Supervisor Kenneth Hahn inquired of Detroit automobile makers as to whether research was being conducted to eliminate emissions. The response was vague. With the threat of mandatory federal regulations, the auto industry began to install crankcase blowby devices (which returned unburned gases to the combustion chambers) on their cars. This was a significant advance because crankcase blowby produced 25 percent of the engine's hydrocarbon emissions. This equipment became mandatory on all cars sold in California beginning with the 1963 models."
http://www.autolife.umd.umich.edu/Envir ... rview4.htm
Your pal, pookey mookey boobie boo went berserk and prevented me from posting. I could 'paste' the quote but couldn't type in the quotation marks. Or any commentary.
My apologies.