What oils do you guys use in all diesels?

[Northernexplorer]

A friend of mine runs an old diesel 80 series Landcruiser he bought about a month ago an we where wondering what oil to use. Any suggestions?

 

[Aussieadventurer]

10-40 or 15-40 if you are in cold weather it may be worth using a 5-40

 

[Rockingladiator]

agreed with the above

 

[Tom Davis]

in the UK I use 5-40