Diesel is gelled up?

Tiny
WILLBAKER22$
  • MEMBER
  • 1997 FORD F-250
  • 7.3L
  • TURBO
  • 2WD
  • AUTOMATIC
  • 349,000 MILES
My diesel is gelled up in the tank and filter it will run for a little but shuts off and will not drive for long what should I do? Won’t run long because it’s clogged. Do you think I can run diesel treatment in it and change the filters would it work or no? It is the 1997 f250 7.3 HD XLT.
Wednesday, July 2nd, 2025 AT 8:37 AM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,144 POSTS
I would change the filters and add a winter-grade diesel anti-gel additive, like:

- Power Service Diesel 911 (red bottle, emergency use) (best)
https://amzn.to/4km3oRU

- Howes Diesel Treat

- Stanadyne Performance Formula Cold Weather

If necessary, bleed air from the fuel system using the Schrader valve on the fuel filter housing. If this does not work, you will need to drain the fuel or remove the fuel tank and flush it. Let me know how it goes.
Was this
answer
helpful?
Yes
No
Wednesday, July 2nd, 2025 AT 11:22 AM
Tiny
STEVE W.
  • MECHANIC
  • 15,237 POSTS
What is the temperature there? If it isn't really cold, you might have algae problems. If that is the case, you would need to flush the fuel system and put some additive in the fuel to deal with the algae in the tank.
Was this
answer
helpful?
Yes
No
Wednesday, July 2nd, 2025 AT 11:29 AM

Please login or register to post a reply.

Related General Content

GUIDE
Inquire Here