I read the article further than wDurrance did. I also thought checking compression at idle sounded outrageous. There were a few other things in the article that were suspect.
If this came directly from the Star, I'm going to be surprised and disappointed. I've received the Star for about five years, and have always thought of it as a very good publication.
The article I saw when clicking on your link had no bibliography of any kind. If it is from the Star, someone is in violation of copyright laws for not indicating its source.
I will try to remember this weekend, to try and dig out this article, and will comment Monday.
Have a great weekend,
'84 Euro 240D, 516K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in