Pennzoil Platinum 5w30

If I were you, I would have used the 5/30. However, the PP that meets the ACEA A3/B4 requirements, is their 5/50.
See for yourself: http://www.pzlqs.com/Tech/Pdsheet/DomesticMarketing/Eng...yntheticMotorOil.pdf

5W-30 itself will not do any harm, it's an approved viscosity. But you might want to check the other fluid characteristics just to be sure.

Thank you!
My other qustion is,can Diesel engine oil be safely used in gasoline powered cars?

Thanks George!
There is one Shell Rotella T SB 0W40 100% synthetic(that what label says?),available in Canada.It is not really expensive $29 for 4 liters jug.It specifies CG-4 and API SJ.Do you think would it be good to pour this oil to BMW engine?
Here is link to this oil spec:
http://kozmik.guelph.on.ca/gtdproject/fluids/shell_sb.htm

I would use what the manufacture calls for, which is an oil that must have a min HT/HS of 3.5. PP's HT/HS is only 3.1.

Pennzoil makes a Platinum 5w30 Euro oil that does meet the ACEA A3 specification, but it's hard to find. I would use Amsoil 5w-40.

Thanks !
But for real ,what would happen if you pour oil with lower viscosity and HTHS to a car which calls for 3.5 plus.My car has 55K miles.Is it only manufacturer specification to run this specific oil in this car ,or it can have some negative impact ,how the engine sound and operates?
Another thing,can I mix half and half oils of same brand with different viscosities.Like 5w30 and 5w50 ,to get 5w40 ,or it does not work that way with oils ?
Thanks for any suggestion and professional advise.
Zbig

So ,guys can anybody gives me an answer to my last qustion please?
Z.