Good evening all from beautiful snow covered Huntsville, TN.

I was recently told by a Detroit Diesel mechanic that Prevost had sold some of their buses with synthetic differential fluid, and some with synthetic hub seal fluid. However, he didn't know for sure what year this started. He said if it was sold with synthetic fluid, I should replace with synthetic when it's time to replace.

Does anyone in POG land know if there was a "switchover year" when Prevosts were shipped with synthetic differential fluid and hub seal oil? Our bus is a 2002 chassis, 2003 Liberty conversion, XL II.

Eric Faires
Huntsville, TN