Another thought on this. The 4th gen HP pumps are more sensitive than older pumps. It could be a case that the fuel delivery driver hooked up the wrong hose, realized it, and then topped off with diesel. He/she might have thought "eh, it was only 10-20 gallons. That's not enough to be a problem." They would be right ... in the 80s and 90s. If it is a small contamination there could be trucks dying very slow deaths over the next several months.Details - 2015 Ecodiesel with 110,000 miles started hard and wouldn’t idle. Towed in dealer said metal shavings in hp pump outlet - pump had disintegrated and contaminated entire fuel system - lines, tank, injectors, pumps all needed replaced. $13,000. I should have tested fuel and filed claim with insurance or against fuel station if bad fuel detected and proven. Was out of warranty so just traded in on new 2018. Six weeks and 4600 miles later fueled up at high volume station at separate diesel island - 2 hours later truck abruptly died accelerating onto freeway. Towed to dealer who claimed tested fuel had “separated” and said tank needed drained - non warranty $600. Ok I said I needed truck next day for trip. Said smelled like gas. (Wth -does gas separate ?)
Well after flushing it was discovered hp fuel pump had seized and then that cam lobe bolt had failed and then rocker arms broke and then other side rocker arms broke. Finally after 30 days I may be getting it back tuesday. I’m out $5,000 and my Insurance is paying another $4,000 for consequential damage to my engine. So $13,000 for first ecodiesel hp pump related repairs and $9,000 on second ecodiesel hp pump related repairs. Maybe with aftermarket added water separator and additives they can live but otherwise non-warranty Time Bomb!
So. Call your state's department of whatever and sue that station to last year.