Hi

I got my A3 to weeks ago and it is my first diesel. I live in South Africa, and I have to diesel choices 50 ppm and 500 ppm. Does anybody know what is the best type of diesel for my Audi?. I LOVE my A3 and only want to use the best!!!

 

I am no expert on diesel, but perhaps this number is referring to the sulfur content? I know in the US we've just adopted ULSD (ultra low sulfur diesel) which is required for use in all 2007+ diesel engines, and is safe for older models as well. According to Wikipedia, the UK has been using low sulfur diesel for quite a while.

PPM = parts per million, so if it is referring to sulfur content, 50 ppm would be better. However, if you're car does not have a warning sticker by the fuel tank or in the owner's manual, you can probably use either.

Again, I am not expert, I am just speculating. Please do not go by this alone.