Diesel cetane ratings by fuel brand?

[briancpearce]

Can anyone direct me to a resource where I can research diesel fuel cetane ratings by fuel brand? I know it varies a bit by region and time of year, but since the cetane rating isn't posted at the pump, all I know is that everyone at least meets the minimum US spec of 40. My father has a 2010 VW Jetta TDI and we're looking for the best fuel to put in it. I've done some looking around here on the forum, but haven't found what I need. If someone knows of an existing thread, please point me to it.

 

[jmac]

Here are some older links:
http://www.bobistheoilguy.com/forums/ubb...rue#Post1412353
http://www.bobistheoilguy.com/forums/ubb...rue#Post1489145

Never have found a site that definitely lists tested values by brand, but all in all as long as you stick to places that turn over a good amount of fuel I have not had a bad batch from stations in your area. It has been a while though.

 

[Ken2]

I don't think there is enough difference between brands to matter. If there is an outlet selling premium diesel fuel, and you can determine that it actually has higher cetane, try that. Or, use a cetane boost additive in the fuel.