L322 Engine Oil for L322 V8 Petrol

Hi Guys.

Recommended is 5-40w

But using 0-40w better/worse/wrong??

what do we think?

Best wishes.

hi there i put 10w 40 in mine in summer and winter 10w 30 .petrol engine. but 40 is a good all rounder.5w 30 diesel engines

I use 5w40 in my v8 l322, the first number is cold viscosity so 0w-40 will be thinner cold so should circulate quicker at start up. But as these engines are getting older a lot of people who use 0w oil say their engines are noisier cold on the thinner oil. The 40 is hot viscosity so should be the same on both, personally I use a good quality oil and change it a lot more regularly than the recommended interval.

RRkev. Many thanks.
Mine is left standing often. maybe up to three weeks at a time and I have found that in the winter, slight startup noise happens then all is fine.
iI only happens in the winter and after a week or so of standing (outside). So i feel going to 0-40 would be a benefit in this instance.
Looking to use Mobil 1 0-40w.
Oil gets changed every 4k miles

So any reasons I should not?

mine has an occasional rattle on start up, it's quite common, some say it's the vanos units, some say it's an oil valve behind the vanos solenoid, but i use mine pretty much daily final choice is upto you but people do use the 0w-40 with no issues, but i'm sure someone else will have some input soon.

Great.
so anyone unhappy with using 0w-40??

Only if it rattles!!!

thanks st.
so ok...i'll put the gold stuff in and see..