Yeah, I was going to say something similar. It's not a language barrier, it's probably more of a cultural one. I also had no idea what you were talking about until I saw 'BMW'

It's things like '7' and 'blat' and just how its written that meant I had no clue what was going on If someone talked entirely in American slang, with words and grammar that's only used here, you'd probably have an equally hard time I often don't know what the Brits on this BBS are saying (hell, I often don't know what Americans are saying on other boards).

That said, I still don't understand your post. The best I can figure out is that after 1000 miles, your car doesn't run well because it's dirty? I don't really understand