Quote:
Originally Posted by alexk
Matt, mine doesn't consume any oil (now you will tell me you change it very quickly).
I do change the oil so frequently on my own and I am amazed about how thick the oil is only after 5000 km.
I can't imagine how the oil looks like after 20000 km (even though you would have added another 2 lt in the meantime).
I am sure that the oil consumption is related to the oil getting fecked up.
That's not good for this engine with F1-like piston speed.
BMW bulletin solutions later on 
Thank you please
PS1 : Dan, change the oil oftenly, no matter what they tell you in the dealership
PS2 : it would be interesting to have stats from members with oil consumption and gas emissions, I am pretty sure the oil-thirsty cars will have more emissions  |
I couldnt tell you in all honesty how much oil mine uses as I change the oil after every trackday. The oil in the engine gets to 125*c so over a trackday running constantly at 125* I think it best to change it. The breakdown at that temp is significant.
Most the M3's we service use not a drop of oil over a 10k period so I suspect that Matts engine has some wear somewhere.
And in 1500 miles mine used not a drop.
Most manufacturers have a tolerance level for oil usage per 1000 miles.
1 litre per 1000 miles in most cases. So 10 litres of oil per service period is deemed ok.
Too much IMO. Its to cover their own backs a some engines tolerances differ, many variables decide this, ie running in adhered to, hard acceleration when cold.
And If you guys are constantly putting oil in as Matt is, I suspect your running in period of low revs was definitely not adhered to on your CSL's.