Raising the Cetane level in diesel improves the combustibility of the fuel, similar to adding an Octane booster to gasoline fuel. You won't be able to raise the cetane level of 25+ gallons of diesel very much with an 8 oz or 16 oz bottle, but it's meant to be a booster to give you a little better fuel economy.What is +Cetane Boost? Cetane is a powerful energy compound that improves the ignition quality of fuel. There is a direct relationship between a diesel fuel’s cetane number and its ignition point. The lower the cetane number, the longer the ignition delay.Fuels with high cetane numbers burn more quickly and more completely, resulting in smoother and quieter running engines, quicker engine starts, more power and improved fuel economy. In fact, The Engine Manufacturers Association (EMA) states, “Fuels with low cetane numbers will cause hard starting, rough operation, noise and exhaust smoke. Generally, diesel engines will operate better on fuels with cetane numbers above 50 compared to fuels with cetane numbers of the national average of 46.”
While the asphaltene is what probably plugged your original filter, I don't think fuel should ever be as "dark and dirty" as you described in your tank = you need a fuel additive with some form of cleaning component to remediate any darkness or dirtiness of the fuel in your tank.Draining fuel, the original 50-60% was very clean, then it started to get very dark and dirty.
Yup! It's like the opposite of Octane, it helps the fuel burn more readily and therefore also cleaner with less soot. I add it to every tank. The minimum cetane level in the US of 40 isn't good enough.
I had my fuel filter changed at 15,000, and I am sure it helps my mpg on a recent trip to Pennsylvania, I did hit 28 mpg, but I did not take my phone out for the picture so we will live with the 27 mpg, I keep forgetting to put the truck in ECO drive . I stopped somewhere in MD to top off my tank and I ran the truck for the 4 days I stayed there in Pa and filled up somewhere in NC on the way back.,I waited to change my fuel filters until 30k per the book. I bought them on time but got busy. Hit ~32k miles and truck started running poorly and shifting rough.....mileage dropped off by about 35% as well. Changed my filters now everything is great immediately ...must of been all the dirt and sludge in the frame filter! Going to order another set not for the shelf and do them ~300 hours.
Pleased that the fuel frame filter shares the same large socket as the oil filter...
I have heard the other fluid service intervals should be shortened....it’s all the same fluids I grew up with, and same machinery just more computers/sensors....not sure why they think technology would extended the life of consumables
I stumbled across Post #20 in this older 3.0 Fuel Filter Replacement thread where @Dunrollin did post a pic of his large fuel filter on his last fuel filter change:I will get pics of my next/second filter change at 30K (which may be a couple months) and post back to this thread. I encourage other DIYers (@Dunrollin I'm looking to you!) to post their change interval and pics of what their filters look like at that interval, along with if they are using any diesel fuel additives. I think by doing this we can crowd-source visual definitions/references of what "dirty" and "plugged" filters look like.
@hydrex - are you using the FuelOx specifically for reducing Asphaltene (FuelOx Asphaltenes) or the all-purpose formula in your bulk tank?BTW, I'm trying an additive called "Fuel Ox" in my 275 gallon bulk tank on next fill up, curious if it reduces the asphaltenes as advertised. My brother never listens to me, haha.
jmperlik, I treated a 275 gallon tank with Fuel Ox , now the tank is about 50% full. I recently changed oil and filter and fuel filter. 10,000 miles on oil and 10,000 miles on the fuel filter. Now, maybe only 5,000 miles were with the Fuel Ox and I have always used the NAPA Gold fuel filters. 2 observations: First, the filter was not as black as usual, maybe half as black. Second , the NAPA filter showed a few pleats bagged out, never had seen that before, but another Ecodiesel owner mentioned that happening with the NAPA filters! I put in a MOPAR filter that I found on ebay. It does look like a better design than the NAPA one. Seems like the Fuel Ox did reduce the asphaltenes. Honestly, I think changing your fuel filter more often is the best idea. I used to go 30,000 miles, now I'm going to go 10,000 miles, just do it at every oil change. Only takes a couple minutes. I did not see any change in mpgs with Fuel Ox, but it typically is around 27.5 winter and 30 mpg rest of year. If you do try Fuel Ox, a little goes a long way!
@FUGAZI - OK, it's officially the end of the summer, so inquiring minds & eyes want to see some pics!... I am going to do fuel filters at my next oil change and end of summer and will post my fuel filter pics…..