GRPFAN

It's been brutally cold here in Wisconsin with -10 and -15 for daily temps.

Today I stopped and fill my gas tank in my 2012 RX350 and a gas can I use for my John Deere tractor.

After I filled both tanks, I notice a large semi gas truck filling the main in ground gas tanks.
I ask the gas guy that "I heard one should never fill your gas tank while and shortly after the
main tanks are filled because of sediment steered up."

He said there's nothing to that. Gas is the mosted filtered liquid known to man.
It's filtered at the refinery, it's filted going into the truck and each gas tank at the stations have their own filters.

What do you think?

mshumack

He's right. You would be surprised how much gunk is at the bottom of the tank. I managed a fueling site at my last job, and when we had a rash of fuel injector problems we traced it back to the fuel. We got a load of bad gas and we had to pump the tank out, and at the very bottom there was two inches of crud (the pickup pipe does not go all the way to the bottom). Filling the tank can stir up that sediment. However you have a fuel filter in your car so the crud will never make it to the injectors (but you may need to replace your gas filter more often).