Not only are the suppliers 'mum' on cetane levels, but also the additive mfrs hide it with;
Improved Cetane, Cetane Plus+, etc.
You might find something like 'X points' (rare), which is a useless value if you don't know the baseline of the suppliers' fuel, which as stated, is a National Security secret held from the consumers.
Anything beyond a 55 will show no measurable gains. A wall if you will, where more is better is just $$ lost.
14 hrs in the saddle on Friday, running on fumes, was forced to fill with Valero.
Which is known for having the EPA minimum Cetane of 40.
Could've dropped a $20 to bridge the gap to a better source, But I didn't wanna be a Dick, breaking a Franklin late on a Friday night at a small remote Redneck owned store.
And....both bottles of Schaeffer's Diesel Treat on board....were empty (forgot to refill). So no boost on top of their crap fuel.
I punched it out the gate to match the night flow dark highway and..... a fuel limp.
Can't wait to burn thru this tank of Valero crap.
Gonna try a double dose of DT2000 later this afternoon, and top off the tank with something decent. Hope that's enough to compensate.
2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"