OK... if I remember correctly, the fuss BMW made back then was with regards to Malaysia's half-arsed hot-hot chicken shit B10 biodiesel fuel. BMW claimed B10 biodiesel will fuck up BMW diesel engines.

Not the regular diesel fuel.

In my limited knowledge, the key diff between older diesel engines and Euro 5 engines is the cat converter. Euro 5 car converters are required to remove more crap in order to comply with the stricter emission standard of Euro 5, so it helps to use cleaner diesels to begin with. Right?

Therefore... it follows reasoning that using the old shit diesel in a Euro 5 car will just foul up the Euro 5 cat converter sooner. That said, there are driving techniques that you can use to 'clear up' dirty cat converters (drive until engine up to temp, then WOT to 'clear the exhaust' or some shit like that).

And even then, everybody knows cat converters will all eventually die anyway regardless. Some people even remove them outright in their quest for more power.

This post has been edited by ZZR-Pilot: Jul 24 2017, 04:21 PM

Great explanation.

But this bit... hmm... is it true, almost all diesel cars in Msia have no DPF?

Coz if that's really true, it really wouldn't matter which type of diesel owners of the new Sorento use.