diesel foam

[ilovetrains]

why does some diesel foam and some not? I stopped to fill mine up the other day, and had foam pouring out the filler neck before it was full, down the side of the truck. Could not add anymore without it foaming out the filler neck.

 

[JFaughn]

There's an aditive that the refiners put in to stop that , or make it less , sounds like somebodys trying to make a little extra profit .

 

[The patriot]

How fast were you pumping?

I pump slow, especially towards the end and seldom do I ever have a problem.

 

[HEMI®Dart]

B20 is great. Little foam.

 

[SHobbs]

B100 is even better, lol. A good investment for your truck is a rubber flap that fits around the filler neck. It hangs down about 12in. from the neck and rolls up when you are done and keeps the burps off the body panels. Fuel runs down the flap and drips to the ground away from the body panels. You can get one from Genos, real cheap too.

 

[PSchwering]

Another possibility is if the fuel pump(drawing out of underground storage) has a small leak in the section line - could be sucking air into the fuel. Will certainly make a lot of foam - P.