NEW YORK, Nov. 14, 2025 /PRNewswire/ -- Standard Motor Products, Inc. (SMP) continues to add to its comprehensive Positive Crankcase Ventilation Program. The Standard ® crankcase ventilation line-up ...
Crankcase blow-by is hot gases that sneak past the piston rings. As of 2007, the U.S. Environmental Protection Agency limits nonmethane hydrocarbons to 0.14 grams per bhp-hr. Blow-by gases are rich in ...