Fueling issues?

[Old Goat]

Here is another good one.

Fuel Tank Vent Modification for Front/Rear Tank - Ford Truck Enthusiasts Forums

Pre-Power Stroke Diesel (7.3L IDI & 6.9L) - Fuel Tank Vent Modification for Front/Rear Tank - Two years ago I pulled the bed to install the 38 Gallon rear tank. Added 2 new fuel senders and Shower Heads. Installed a 3/4 fitting in the Roll over valve grommet, and added 3/4 hose for the vent...

www.ford-trucks.com

Goat

 

[Big Bart]

I always put in additive first but foaming is random. Just depends on the station. I've been to a station recently (small nozzle) that pumped so slowly that I had it locked on max and it was still slow. Some have no foam issues, others constant. Just one of those things.

I no longer have issues with foam unless filling a partially full tank with additives already in it or when I put additives in first then fill. I fill up at LA, OC, and San Diego stations so for me it is not station to station dependent. I do find station to station the flow rate varies. The ones that flow fast will often click off a couple of times. Usually in 1-3 tries I find the sweet spot of angle and depth and if I hold still can fill the rest of the tank. I use Diesel Kleen but after seeing that recent report thinking about 2stroke oil.

 

[IDIBRONCO]

As long as you don't use red two stroke oil, you should be fine. That also shouldn't cause any foaming. At least it doesn't do anything unusual when I mix it with gasoline. When doing that, I always put the oil in the container first to help the oil get mixed up. I tun the nozzle at full blast for the same reason.