If this helps we have a 2008 VP SX drive and the manual calls for either VP gear lube OR Mobil Delvac 1 Synthetic Gear Oil which I use. (after writing this I am struggling to find where I saw this reference to Delvac 1. Im certain I read it but cant back it up right now.
Its important to know this is MOBIL DELVAC 1 Synthetic Gear Oil not the commonly available Mobile 1 Synthetic Gear Lubricant LS
My VP owners manual specifically states either VP Gear Oil or the
MOBIL DELVAC 1 Synthetic Gear Oil
IN fact due to your post I am glad to see the source I have used before has it in stock, I though they stopped carrying it and would have to go to the VP branded which is fine too I guess. The Mobile Delvac is hard to find in gallon sizes and glad to see it back in stock.
I try to be careful with gear lube in our 2008 SX-A Not a duo prop as with the clutch in these drives wrong lube can make trouble. I know nothing about the 2001. I think 2007 or 08 was the new version which I have. Anyway, I dont see how you can go wrong since VP offers the choice of their branded oil or the Mobile DELVAC
Anyway, this is the source I used before and I see they have it back.
View attachment 227275https://www.summitracing.com/parts/...1596235355180&utm_content=GSAPI 5ba2890b95770
Actually I found my old post but now I can find where I found the reference to this oil though I am sure I did because I dont go off script with gear oil in outdrives, like, never.
https://bobistheoilguy.com/forums/threads/marine-gear-oil-for-lower-units.328540/post-5458339