1989 autoquest 400 oil change

[tollgate]

Hi Everyone
Just purchased my first motorhome and need to do a oil change. The model is a Fiat Ducato Autoquest 400 petrol, I have found the dipstick & the sump plug but can not find the filler can anyone help me.Thanking You tollgate

 

[Peter JohnsCross MH]

Hi Everyone
Just purchased my first motorhome and need to do a oil change. The model is a Fiat Ducato Autoquest 400 petrol, I have found the dipstick & the sump plug but can not find the filler can anyone help me.Thanking You tollgate

On top of the rocker box?

Geo should know:thumb:

Peter