Hogwash. These are not VAG blocks.
The ONLY time you're going to EVER consider a 50 weight in a post '99 turbo white block is if you're competition tracking a heavily modified one. And it sure wouldn't be a multivis, either.
You should NEVER need that heavy a viscosity in any street variant of this engine, anywhere.
On the post '99 white block turbos, a full synthetic 30 is fine on the street except under the most severe of conditions, where a 40 might be advisable. I drive a HO turbo 2.5, an S60R to be precise. They don't get much more stressed than that in a street block. Only modded Rs, where the HP goes much past 350, are 40 weight candidates.
On pre-99s, I will lean towards a 40, but for different reasons. There was a piston ring change around 99, so the earlier ones might experience a little less consumption on 40. But they won't be harmed at all using a 30.
The more important need with a turbo white block is for a synthetic base stock that has superior thermal stability. And a 5w-50 multivis would not be first on THAT list, especially if racing it. Try a straight 40.
A 50 on any white block turbo would just KILL spool up and response.
And the ticking is from the injector valving. Volvo's fuel injection systems are notoriously LOUD.
This guy is talking from the days of red blocks and non-water cooled blowers.
And unless he's tracking a heavily modified R engine, he doesn't know what he's talking about.
The ONLY time you're going to EVER consider a 50 weight in a post '99 turbo white block is if you're competition tracking a heavily modified one. And it sure wouldn't be a multivis, either.
You should NEVER need that heavy a viscosity in any street variant of this engine, anywhere.
On the post '99 white block turbos, a full synthetic 30 is fine on the street except under the most severe of conditions, where a 40 might be advisable. I drive a HO turbo 2.5, an S60R to be precise. They don't get much more stressed than that in a street block. Only modded Rs, where the HP goes much past 350, are 40 weight candidates.
On pre-99s, I will lean towards a 40, but for different reasons. There was a piston ring change around 99, so the earlier ones might experience a little less consumption on 40. But they won't be harmed at all using a 30.
The more important need with a turbo white block is for a synthetic base stock that has superior thermal stability. And a 5w-50 multivis would not be first on THAT list, especially if racing it. Try a straight 40.
A 50 on any white block turbo would just KILL spool up and response.
And the ticking is from the injector valving. Volvo's fuel injection systems are notoriously LOUD.
This guy is talking from the days of red blocks and non-water cooled blowers.
And unless he's tracking a heavily modified R engine, he doesn't know what he's talking about.
