FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Fuel System Cleaner

    • 1 of 1

       

    5/26/2023 6:16 AM  #1

    Toploader
    Senior 24-7 FYI Addict

    Offline

    Registered: 4/15/2013
    Posts: 1,614

    Fuel System Cleaner

    I'm coming up to another oil change and this time I was considering adding a fuel system cleaners. Ive always been in two minds about this stuff.
    What are people's opinions on fuel system cleaners like seafoam? My engine was rebuilt about 15 years ago and wondered if there was something to clean up things such as carbon build up.

    1964-1/2 D Code Coupe - 289 V8, 4 Speed Toploader, 3.00 ratio rear, Autolite 4100 Carb, 15" tires, Pertronix ignition
     

    5/26/2023 6:51 AM  #2

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,731

    Re: Fuel System Cleaner

    A god run through the gears has always sufficed for me to keep the engine clean.
    I do use seafoam in my gas tank if I am experiencing any fuel contamination issues.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    5/26/2023 8:45 AM  #3

    BobE
    Senior 24-7 FYI Addict

    Offline

    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,200

    Re: Fuel System Cleaner

    Guys in the car club I belong to swear by Seafoam.  It can't hurt, even if you don't need it.  I recently used it in the gas tank of my 175,000 mile daily driver, and didn't notice any difference, although I really wasn't having any issues. 

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    5/26/2023 10:23 AM  #4

    6sally6
    Hyper FYIFORD ADDICT

    Offline

    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,460

    Re: Fuel System Cleaner

    Many moons ago...when I worked P/T at 'Poop Boyz'....we had a whole row of fuel treatment stuff.
    It makes guyz "feel-good" that they did something extra to the fuel in their tank....
    Denatured alkee-haul........same stuff and lotz cheaper...Dump some in your tank(with gas) and it will..
    absorb the water
    smells masculine
    can't hurt much
    6sally6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    5/26/2023 5:17 PM  #5

    Toploader
    Senior 24-7 FYI Addict

    Offline

    Registered: 4/15/2013
    Posts: 1,614

    Re: Fuel System Cleaner

    Thanks guys!
    I don't think I have any real issues, other than maybe some carbon build up.
    What's the thoughts on using a spray carb cleaner?
    MS - are we talking some high revs to blow out the cobwebs?

    Last edited by Toploader (5/26/2023 5:18 PM)

    1964-1/2 D Code Coupe - 289 V8, 4 Speed Toploader, 3.00 ratio rear, Autolite 4100 Carb, 15" tires, Pertronix ignition
       •Thread Starter
     

    5/27/2023 9:45 AM  #6

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 11,731

    Re: Fuel System Cleaner

    IF you have carbon build up, the likelihood of it being turned loose from the combustion chamber is of great concern to me. Have you ever seen an engine they sat for a long time and the carbon deposits dry up and fall into the cylinder?  The first time you crank the engine they all jam up against the rings and seize the engine. The 289 that was in my 66 was like that. Upon disassembly, the pistons were removed using a sledge hammer, and not easily.

    Right or wrong, my advice is to drive the crap out of it…alot… to keep that stuff from building up in the first place.  Keep the proper A/F ratios and if it is burning oil, rebuild it.  Spend your money on fresh gas, and as much as you can cycle through it.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    5/27/2023 5:28 PM  #7

    Toploader
    Senior 24-7 FYI Addict

    Offline

    Registered: 4/15/2013
    Posts: 1,614

    Re: Fuel System Cleaner

    Thanks MS.
    I do drive it regularly and cycle through the gas. Engine was rebuilt in 2005 or so and still seems to have good compression. I notice a little smoke with harsh reving, but that's all. With the A/F ratios, I try to aim for as lean as I can, whilst keeping a smooth idle and no stumble on acceleration.
    Sounds like I just need to find some open road and give it a heavy foot.

    Last edited by Toploader (5/27/2023 5:29 PM)

    1964-1/2 D Code Coupe - 289 V8, 4 Speed Toploader, 3.00 ratio rear, Autolite 4100 Carb, 15" tires, Pertronix ignition
       •Thread Starter
     

    5/28/2023 5:54 AM  #8

    red351
    I FYI 24-7

    Offline

    From: Cumminstown PA
    Registered: 5/31/2018
    Posts: 445

    Re: Fuel System Cleaner

    Varnish buildup on intake valve stems is my concern using cheap gas. Hopefully top tier fuel helps to prevent the buildup, but I still like to run Seafoam in the tank every so often.

     

     

    1 of 1

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  »  Fuel System Cleaner

    • Board footera


    REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.