No.. It is very clear in the body of the lawsuit. MB originally recommended conventional oil with FSS equipped cars, but once the customers complaints came in, they switched to pure synthetic oil in oil changes at service centers staring March 2001. They gave $35 vouchers to those who owned 1998, or 1999 cars towards synthetic oil changes.I've had Mercedes for 30 years and had always thought that they recommended synthetic from day 1 for FSS cars. Probably how the class action law suit came. Interesting what the other poster showed about his 1999 and no recommendation as to the type of oil.
Of course, if you want to run conventional oil in your cars and take them to 13,000 miles , feel free.