DIESEL CETANE RATINGS
I have read that Cetane ratings for diesel fuel should be at 45 or higher. Most available diesel fuels are at 40 Cetane. Miniumum California Cetane diesel fuels are required to be at least 50.What do ...
Forum Discussion
John & Angela wrote:wintersun wrote:
Cetane ratings for diesel is much higher in Europe and I would consider an additive for a car imported into the states. The US manufacturers know about the fuel available in this country and engineer their engines accordingly.
The newer the truck, as in post 2010 the less I would worry about additives. Not that the additive companies are above using scare tactics to sell more product.
Totally agree. Our 7.3 powerstroke showed no difference with and without Cetane. Our little smart car diesels run much quieter and smoother with the cetane additive. Our cummins 8.3 also runs no different although I only tried it once.
I think you'll find the difference is the lubricity additives in whatever it is you're adding, not the increased cetane.
That's why people say that biodiesel makes their diesels run so much quieter. Similarly, for years people have added a couple of ounces per tankful of automatic transmission fluid, two-stroke oil or even just motor oil.
The most common chemical used by far to boost cetane is 2-Ethyl Hexyl Nitrate, the other items mentioned above are there as dispersants, cleaners or to treat and break up paraffin.
