Volvo Owners Club Forum - View Single Post - D5 (D5244T to 2005)

5cilinder · Sep 14th, 2021, 07:18

Its a range of viscosities i believe if you see the handbook... but it needs to be a/b 4 synthetic
Every turbo engine needs a full synthetic group 4 base oil
Regardless what the dealer says

The turbo bearings are the hottest part and burn not synthetic oil which leaves residue. Especially after brisk driving and shutting of the engine and the oil circulation stops.

In my opinion its even also the best oils for non turbo engines.... look at older gasoline engines without proper oil cooling inside that used semi synthetic oils... they all have that purple/gold brown glow of a layer of varnish that is created with instable oils and hot temperatures and a lot of time

A d5 with regularly changed synthetic oils that are properly cooled ..and lower burning temperatures than a gasoline engine.. are spotless clean inside regardless of the "soothy"oil

Sep 14th, 2021, 07:18	#4
5cilinder Premier Member Last Online: Today 07:52 Join Date: Oct 2011 Location: Groningen	Its a range of viscosities i believe if you see the handbook... but it needs to be a/b 4 synthetic Every turbo engine needs a full synthetic group 4 base oil Regardless what the dealer says The turbo bearings are the hottest part and burn not synthetic oil which leaves residue. Especially after brisk driving and shutting of the engine and the oil circulation stops. In my opinion its even also the best oils for non turbo engines.... look at older gasoline engines without proper oil cooling inside that used semi synthetic oils... they all have that purple/gold brown glow of a layer of varnish that is created with instable oils and hot temperatures and a lot of time A d5 with regularly changed synthetic oils that are properly cooled ..and lower burning temperatures than a gasoline engine.. are spotless clean inside regardless of the "soothy"oil Last edited by 5cilinder; Sep 14th, 2021 at 07:38.