use 20W-50 if you don't want it to all leak out.
You need to include a model. It's not going to be the same for a Volvo car as it is for a Volvo semi truck.
Use only the weight recommended by Volvo and I doubt that they recommend 10w40.
10w30 is recomended.
An oil pan cover from a Volvo s80 can fit in a Volvo s60.
How do I change oil and oil filter on 2000 Volvo v40 1.9turbo
Volvo recommends 10w30 full synthetic oil.
how do u perform an oil change on the 01 Volvo s40
10w30
Requires a special wrench tool. Look on eBay for "Volvo Oil Filter Wrench" They are about $10.
Any 10W-30 oil meeting the API-SM specification is recommended for the 1995 Volvo 850.
The Volvo S80 normally requires 7.3 quarts of oil; however I suggest adding 7 quarts of oil first, and then check the level.
95cc each leg for an oil change. 105cc if totally dry. These springs are ridiculously soft, so unless you're 110 lbs. (or just love pogo sticks), I'd go with 20 weight.