GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Page 1 of 2 12 Last Post byLast Post by
Results 1 to 10 of 12
  1. #1

    Question Additives and cleanser fluids

    Ok, I've been looking around on autozone and other parts sites and looking at all the additives and other cleaning agents they make for "helping your engine run longer". I was just wondering if they were just b.s. or they actually work and are worth the money? Also which ones work the best and if they will help my old Tahoe keep going and stop running alittle hot and help bring it back to a more factory running condition (increase HP, better MPG, smoother running/shifting, less leaks, and extended life)

    1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
    Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.

    Check out my other mods in My Garage: http://www.gmtruckclub.com/forum/sho...t-Tahoe-4-Door

  2. #2

    Default

    I don't know of any additives that will increase your MPG's. But for some preventative maintenance there are 2 that are really popular:

    Techron:



    Sea Foam:



    Both of these are really good. Just watch the labels and use the right amount. My gas tank takes about 1.5 cans of the 20oz. Techron. You don't want to use either of these to rich or too lean if you put them in your gas tank.

  3. #3

    Default

    I was also wondering about ones for cleaning your tranny, in side the block (both oil and coolant), and ones that restore the head gaskets and help restore compression either through the oil or coolant as well.

    My take would take little more that 2 of the 12 oz. its a 30 gal tank.

  4. #4

    Default

    I know that you can use Sea Foam in your oil before doing an oil change ( don't run it in the oil too long ) I would not put techron in your oil.

    As far as the tranny goes, that I am not sure about.

    I would check the instructions on the sea foam as it will do most of what you want. You will need something else for the tranny.

  5. #5

    Default

    I was just wondering because my truck has over 196,700 miles on it and even tho it runs and shifts solidly I want it to keep on going for a very very long time. One of my next buys will be a k&n stock replacement air filter that has a million mile warranty I plan to see how well it can handle that claim. I'm also asking because after my last oil change I did, which was only 800+ miles since the one I did before it, the oil was very dark , but it was a oil meant for cleaning out sludge and deposits which it did fairly well the truck is very happy after the last change. Probably helps I replaced the leaking oil filter to block adapter gaskets.

  6. #6

    Default

    IMO, most additives are nothing but "snake oil" a good quality synthetic oil is all the additive that you require.

    Having said that, those of us with the 5.3 engine and with the AFM feature are experiencing stuck piston rings. I will be looking for an additive to try and address this problem.

    Your tranny: just change the fluid and replace with the recommended ATF.

    PS: while your at it the diffs (front and rear, if you have a front one) need to have the gear lub changed. And, while your at it the transfer case, if 4x4, needs changing as well.
    Ray

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

  7. #7

    Default

    Once I save a little more $$$ I will be servicing the 4wd before the winter hits so that way I know its ready for the worst. So what your saying is most engine, tranny, or coolant additives are just b.s. that aren't needed for a well maintained vehicle. I'm wondering this only because I'll do close to anything to keep my Tahoe running in top condition and trying to get it to factory specs and condition.

  8. #8
    Sr. Mechanic
    Join Date
    Jun 2011
    Location
    Tuscaloosa, AL
    Posts
    160

    Default

    For your tranny if you don't notice any discolor or burnt smell don't touch it. My opinion is if it isn't broke don't fix it. My dad's F-150 has about 230,000 miles with no work or fluid change ever on the tranny. He also pulled our 28' boat for 12 years. Most quality tranny shops will say the same. The only place that will tell you different is the dealer and well we all know what they are after. $$$

  9. #9

    Default

    Only brought my truck to the dealer once and that was because I was stranded and it was the only shop that I could trust where I was. Last month I had my tranny completely flushed because it was shifting hard and the truck has a lot of miles and I don't know how the original owner drove it.

  10. #10

    Default

    Quote Originally Posted by sierra11 View Post
    For your tranny if you don't notice any discolor or burnt smell don't touch it. My opinion is if it isn't broke don't fix it. My dad's F-150 has about 230,000 miles with no work or fluid change ever on the tranny. He also pulled our 28' boat for 12 years. Most quality tranny shops will say the same.
    I'll calling bs on this. Read the owners manual. You would not treat your engine in this manner, why abuse the transmission. ALL fluids need to be changed periodically.

    Quote Originally Posted by sierra11 View Post
    The only place that will tell you different is the dealer
    And RayVoy

Page 1 of 2 12 Last Post byLast Post by

Similar Threads

  1. Fuel additives
    By ejohnson03 in forum Performance & Fuel
    Replies: 8
    Last: 06-02-2011, 08:57 AM
  2. Fuel additives? enlighten me please
    By ohiomossyoak in forum Maintenance & Upkeep
    Replies: 14
    Last: 12-14-2010, 08:23 PM
  3. Do You use any additives?
    By Bougaev in forum Maintenance & Upkeep
    Replies: 12
    Last: 08-22-2010, 01:28 PM
  4. BG Additives
    By detailjohn in forum General Chevy & GM Tech Questions
    Replies: 0
    Last: 04-03-2010, 10:49 AM
  5. Aftermarket engine additives ?
    By Max Diyer in forum GM Powertrain
    Replies: 4
    Last: 09-11-2007, 08:32 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •