Think the benefits of synthetic oils were only something discovered in the 1970's?
Think again - check out this June 1946 article, page 99:
http://books.google.com/books?id=7SADAAAAMBAJ&pg=RA1-PA99&dq=%22synthetic+oil%22&as_pt=MAGAZINES&cd=4#v=onepage&q=%22synthetic%20oil%22&f=false
Same findings, just 30 years earlier!

Think again - check out this June 1946 article, page 99:
http://books.google.com/books?id=7SADAAAAMBAJ&pg=RA1-PA99&dq=%22synthetic+oil%22&as_pt=MAGAZINES&cd=4#v=onepage&q=%22synthetic%20oil%22&f=false
Same findings, just 30 years earlier!
