Ethanol Free Fuel worth it for an NAS Truck?

FlyersFan76

Well-known member
Okay, probably more confused than ever, thanks all.. In all seriousness, filled-up yesterday with 93 octane premium. Was cheaper, and three octane points higher, and since I run a slightly advanced timing, I worry about the octane rating. I don't daily drive my D90, but rarely do I go a month without a fill-up, so I dunno (still)..

Chuck C4, the Ethanol free fuel has its own line/handle on the pump, just like the Diesel does on the same pump, but I have no idea what happens under ground..

There is no crossing of the lines underground. Ethanol Free gas goes straight from the Tank -> Pump -> Supply Lines -> Dispenser -> Hose -> Nozzle -> Vehicle. If any of the fuel was being blended then the Ethanol Free fuel would not be ethanol free.

87, 89, 91, etc octanes on the other hand are generally blended at the dispenser. So 87 octane and 93 (or whatever the high octane is) are in the tanks and blended to make the mid grade fuels.
 
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