Which gear/leg oil???

[bammylovechops]

Hi,
I have a Sealine F34 with 290 dp-e drives.
I now the oil specification it is:- API GL5 SAE 75w90, the bit I'm not sure about is should it be semi or fully synthetic, I am unable to confirm which one is correct. I need 2.7L per leg/drive of which there are two.

Your thoughts are appreciated.

Mark

 

[dpb]

I use traxon synthetic 75w90.
The manuals I have state synthetic for drives after db-a but only goes up to c

 

[[2068]]

The standard Volvo oil is fully synth.