> The Bently manual for the 5000 (T, Q, etc.), doesn't mention anything > about a second turbo oil filter. All of the mechanical discussions and > diagrams clearly show the single oil filter design for all turbos (even > Diesel versions). See page 17.7 of Bentley 5000S, 5000CS IBSN 0 8376 0370 6, clearly two oil filters. Jim Haseltine 88 Ur quattro