Z4-forum.com

Useful video;
https://www.youtube.com/watch?v=oiAL2t2e2Mg

Jesus, couldn't listen to that guy any longer than 15 seconds. I think this was him in a previous job :


Maybe useful for some with an oil burning issue. Certainly when I replaced my CCV system it stopped gulping the gloopy stuff but there are more symptoms than just this. Duff piston rings, scored bores, borked seals can also all cause high oil consumption.

Yes but cheap starting point to look at first.
My car burns 1 litre over 10k miles, so any change in that would ring alarm bell.

I started using 5W-40 in the N52B25 instead of the 5W-30 and it worked

These Zeds are the first car that i have owned that have sooty exhaust for a petrol engine.

flybobbie wrote: Tue Jan 05, 2021 12:08 pm These Zeds are the first car that i have owned that have sooty exhaust for a petrol engine.

It seems to be a BMW thing, my late Cooper S builds up carbon on the chrome tips in no time even when spanked, but uses no oil. I think it's modern fuels (somehow)

Ewazix wrote: Tue Jan 05, 2021 2:18 pm

flybobbie wrote: Tue Jan 05, 2021 12:08 pm These Zeds are the first car that i have owned that have sooty exhaust for a petrol engine.

It seems to be a BMW thing, my late Cooper S builds up carbon on the chrome tips in no time even when spanked, but uses no oil. I think it's modern fuels (somehow)

I too wondered if it was fuel, not oil?
Maybe because they let a bit of fuel down to induce all the pops and bangs?

(But my new 120d has now covered 5400 miles and the pipes are still shiny chrome, inside and out. Not a single deposit from the 'dirty, disgusting, polluting diesel'.)

Possibility.
Funny because sometimes you look down a diesel exhaust and the baffle is shiny silver.

Newer dtec engines with particulate filers aren't allowed to smoke are they so actually less polluting these days than petrol all older lorries and busses though will probably still be pretty bad