Some Ducati manuals show the use of "SHELL Advance Ultra 4 20W50" oil.
This is probably a factory relationship. Ducati.com shows "SHELL Advance Ultra 4 20W50 (synthetic)" as the suggested lube.
http://www.ducati.com/bikes/tech.jhtml
Some interesting inconsistencies:
- Shell DOES NOT make Advance Ultra 4 in a 20W50 in a synthetic
viscosity. Shell only offers a synthetic Advance Ultra 4 in 10W40 and
15W50 viscosities.
- Shell DOES NOT have a JASO MA rating for any 20W50 viscosity
grade oil. See JASO rating approval list;
http://www.jalos.or.jp/onfile/pdf/4T_EV_LIST.pdf
- Shell DOES HAVE oils which have JASO MA ratings under their
synthetic range of Advance Ultra 4 in 10W40 and 15W50 viscosities but
not in a 20W50.
- Shell makes a mineral based 20W50 oil under their brand Advance
S4 brand but it is not listed on the JASO approval list. Again this is
not synthetic.
Here in the US many Ducati dealers offer various 10W50 brands.
- Today's Ducati's need a full synthetic oil with an operating temperature viscosity of SAE 50 or SAE 60.
- ELF offers two products which covers the Ducati synthetic SAE 50
temperature operating range; Sport 4 Campione 10W60 or Moto 4XT TECH
10W50 with a JASO MA2 rating.