i am having trouble with engine running rough. had to nurse it from leicester services on the m1 to surrey (mitcham) when in greater london engine stalled a few times. it was ok from bridlington east yorkshire to the service stop
That is G-d's command. It is still in practice today with "Shatnez Labs" all over the world.
WHAT'S THE REASON?
The Torah does not explain the reason for shatnez, and it is categorized as a chok -- a law whose logic is not evident. The Torah has many such laws; we do not know why pork is...