skyactive, very cool you actually added a dipstick. Never heard of that one.
Ducati996 (the OP): See https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3978754/1
and in there bobbydavro has inside knowledge at Castrol.
It appears Volvo wants the HTHS viscosity to be greater than 2.75
which some 0w20's don't have.
I do think Mobil1 AFE 0w30 would be good though, since its got a little extra HTHS and KV100, but not much more (only 10% more is all), leaving some room for possible shearing and fuel dilution that might happen to an unkown extent. (Seal compatibility of M1 AFE 0w30 would be fine since they test dexos1 oils for a ton of different seals, those in SN plus extra ones for dexos1, and its a worldwide spec.)
Also, if you wanted to be absolutely sure you were keeping your warranty intact with THE right oil, there are several more expensive options.
Google either and/or:
1. Volvo Oil Change Kit 0W-20
and/or 2. RBS0-2AE 0w20 oil
and Amazon, eBay, euro parts websites, etc. have several different brands available.
NAPA autoparts can order LiquiMoly oil, one option.
Not super cheap like M1 walmart jugs, but OK.
Volvo probably runs an intelligent oil life monitor (OLM) algorithm like many engines these days.
It might not be exactly 10k miles. For short trip driving, I wouldn't go more than 6 months (any miles), but the OLM should alert you on the dash when to change it.
Nice thing about the no-dipstick situation is that it will tell you if your oil level is a tad low. Nice automatic feature really since it'll catch a small leak before it gets too low.
Just be sure not to overfill the sump. If you DIY, put in enough to get it to the lowest most level, and gradually add up to the full line over a month or two more after the oil change.
DIY oil changes should be easy on this Volvo. Look for a youtube video on your engine to be sure there aren't any weird-unusual steps to follow.
One DIY trick to nudge the viscosity up a little, adding some margin, is to put in the RBS0-2AE 0w20 oil, with one quart missing
, and keep topping up with 0w40 of the same brand
as your RBS0-2AE 0w20 oil you choose. That way your receipts would show Volvo you put in the right oil, but you added a small visc margin for hot weather, fuel dilution, VII shearing, and/or hard driving.