Iv used Mann and Bosch oil filters before.... but a member on the international 190 forum gave the Filtron a shot and was pretty satisfied. Plus some positive reviews edged me over to checking this out. I still have 3 bnib bosch and mann filters.
As for the oil, i ran a check on the boxes. like i said, alot of fakes out here, better be safe and take your time. contact caltex and see if they approve the product you'v purchased. i only did the oil change after i got the confirmation mail. (i learned this back when i used to buy audio products e.g JL audio, jbl and alpine which have fakes here too)
My first choice would be mobil1 like i said in the previous post but wasnt too sure about where to get them from. the mercedes benz oil that i used before worked better than the total quartz we used before that. i havnt yet run the car so cant judge how good the delo oil is.
about the 5w-40 synthetic oil, well, guess thats somthing for the future. il send you the links where alot of people have voted against thin oils for these old engines. but thankyou for the suggestions
as for the vin, pm me the vin number of your car. il see if the softwares i have can decode them, else il ask some friends on benzworld forums.