Some additives are good and some are not worth the putting in....please do a search on diesel fuel additives [i'll post the link if i can find it again] a University or someone did a lab test to see which are good, pretty interesting stuff.

The honest opinion in the mechanics world is all the manufacturers recommend an additive so you wont hurt anything by using one [Diesel Kleen didnt rate very high but it did work...lets say compared to trans fluid].

Not sure about US fuels but in Canada Shell offers a "Super Diesel" which is a higher cetane and has different additives, even smells different [i suspect its the same blend a Larry NCKS is talking about]....

As for were to buy fuel on the road....personally i stay away from the Flying J truck stop type places as its true their volume is high but the quality doesnt matter....by the time a Tractor has an issue he will be 100 miles or so down the road.....

 

Found it..this is a great read and lists the brands. It also compares some of the same brand blends, the results might surprise you.... [mods might want to sticky the link in the fuel section as it would be good for all to read]

http://www.jatonkam35s.com/DeuceTech...itive_test.pdf

 

Thanks much for the link.

 

It is an interesting read but I can't help but wonder about its accuracy today. It is, after all, a study that was published over 6 years ago with data that came from before that. I personally do not believe that oil companies have not changed their blends in the meantime or been forced to change them thru state or federal regulation changes.

 

True but it's a pretty good baseline....i suspect if they retested it would still be close enough. I also like this kind of stuff to see just were to spend my cash....

 

Good study - but not all inclusive! For instance, there's no Motorcraft additive in that study, nor is there any of my brand.