I have always run way below a quarter without issue. But that is cause I can always go to the station that is 3 blocks from my house to fill up. Not my preference, but can.
When I am road tripping I generally fill up before I get to a 1/4, because of those unforeseen circumstances.
I have had diesels, both Ford and VW, and plenty of gas cars.
All run close to E for probably 3/4 of their miles.
1993 Miata was turned into a Spec Miata with 203K on the odometer with original pump...actually most original parts!
2006 F250 140K when I sold it. Original Pump, still going strong and it is over 200K now. Now MANY of its parts were replaced or removed...but it was a 6.0 after all!
2006 Jetta TDI 165K when I sold it, original pump. I always ran this thing to E, always. I swear it would go forever on a teaspoon of diesel. Averaged 45MPG tuned with aggressive tires. Miss that car!!!
2013 Passat TDI, 96K, VW Buyback, original pump. I logged this car like crazy. It’s pump was routinely run hard because of tuning and other mods. Miss this one too. Got a ton of money in the buyback, but should have kept it.
In this thread we have mentioned 2 Chevys, and an Audi having issues with fuel pumps. Maybe theirs are weak? Maybe the fuel has nothing to do with it. Maybe they improved the design when they put the replacement in?
Do I think running below a 1/4 is an issue in modern Fords, NOPE. Do I think running dry is bad for a pump, heck yeah.
Bottom line. E(Zero to go) in the 15-17 Expy means you can probably do 30+ miles in average driving. Should you push it, no. Moving on.
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