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Lubegard Automatic Transmission Flush #2627300 05/15/12 10:18 AM
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Mark_S Offline OP
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Every transmission on which I have dropped the pan has been really clean. Transmission fluid will clean grease and grime from your hands after working on your car all day. The directions say to run it for 10 minutes prior to changing the fluid.

With that said, what does Lubegard Transmission Flush really do? I've read the web site:

LUBEGARD® TRANSMISSION FLUSH is a premium synthetic blend that prepares any transmission for new ATF. It contains special detergents and dispersants to soften, clean and aid in the removal of harmful deposits that have built up in the transmission. It will not harm metals, seals, friction materials or compromise the fluid itself. It also provides additional rust and corrosion protection. After completing the flushing procedure add the appropriate LUBEGARD ATF product for unsurpassed protection.

What harmful deposits? Iv'e never seen a rusty transmission, they have all been shiny metal and squeaky clean. Anybody know?

Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2627304 05/15/12 10:27 AM
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Trav Offline
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Run you finger over the clean shiny metal valve body or other internals and you will notice many times a black almost transparent film over everything.
Some units do get varnish in the valve body internals, the flush is claimed to rinse these away.

Personally i use LG products but i wouldn't bother with a chemical flush.


ASE L1, Master. Deutsch Meisterbrief.
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2627309 05/15/12 10:34 AM
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SuperDave456 Offline
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On the friction plates you can get a build up of varnish that will hinder them doing their thing. Also that cooked on varnish can also prevent valves in the transmission from opening or closing all the way.

The Amsoil website has a good picture of this associated with their engine/transmission flush.

I've never seen a sludged transmission. But then again I think I have only dropped maybe 12 transmission pans in my life. I'm not a full time mechanic.

I do know I have a friend that just sold his VW Golf with 202,000 miles due to the transmission not going into 4th gear. When I asked about the transmission fluid and when it was changed out he shrugged and said "Why would I ever change the transmission fluid?"

Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2627327 05/15/12 11:02 AM
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LeakySeals Offline
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If you use Lubegard red, you can just drain and fill as usual, and its like a flush every time! Lubegard is the best product on the market no doubt, and the only product recommended by manufacturers


06 Escalade 6.0L LQ9 AWD 167k M1 0w40
03 Maxima 3.5L POS 170k ST HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2627369 05/15/12 12:04 PM
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440Magnum Offline
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Flushes dollars out of your bank account. That's all.


'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2627762 05/15/12 09:04 PM
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Donald Offline
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BG sells similar products.. Probably does not hurt but its another $10 added to the cost of the flush. The stuff added to the new ATF should not be needed if your using high quality ATF and it may skew the UOA if you are so inclined.

Some people have had good luck with Auto-Rx in transmissions, even people who say it has not helped engines. I'd trust something slow before I would trust something fast.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2627889 05/16/12 02:20 AM
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Zako2 Offline
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I would recommend to exercise caution. After running Seafoam Transtune (a less aggressive ATF cleaning/flush product) for about 300 miles before the fluid change, my Taurus developed a leak at the driveaxle seal. These leaky seals are a well known problem, so I don't think the Seafoam damaged anything. What I think it did was dissolve the deposits near or at the seal that was already worn out, creating this leak. By the way, my intention was to use Seaform for 15-30 miles before the flush, but then an emergency happened and I didn't have the time to change the ATF fluid until two weeks later.


Also, I would not add the Lubegard ATF protectant, unless there is already a problem. My car did develop shudders when driven hard. It's hard to say whether this was due to a problem with the transmission or perhaps due to a strange mix of different brand ATFs that I dumped all into the transmission. I added a bottle of Lubegard Platinum ATF protectant, and it appears to have fixed the problem. For next, ATF change, I will be buying Motorcraft Mercon V at the dealer to see if this was an ATF issue.



Last edited by Zako2; 05/16/12 02:25 AM.
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2628293 05/16/12 02:01 PM
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Mark_S Offline OP
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Thanks for the replies. On another thread I told about this transmission (2004 Mercury Sable DOHC). When cold, everything shifts smoothly. After getting hot, the engine will (sometimes) tac up to about 2000 RPM's before shifting into 2nd gear, and there is a bumping when moving in reverse from a dead stop. Both issues are from a dead stop.

I have MaxLife Dex/Merc in it now, and was chastised for using it instead of Mercon V. Valvoline says it is suitable to use, but, I am inclined to agree with those who say I should use only Mercon V. In the near future I will do a pan drop, filter change, and complete flush with Mercon V. I was curious if anyone knew or had good experience with the Lubegard Flush.

One poster said it sounded like my problem was due to the fluid thinning as the transmission heated up. That makes sense, so I also plan to put a bottle of Lubegard Red in the mix since it is claimed to lower fluid temperature, keeping the viscosity higher.

Does anyone know how much Lubegard Red lowers temperature (assuming it does)? Are we talking fractions of a degree or many degrees? Anyone seen any data on this?

Last edited by Mark_S; 05/16/12 02:03 PM.
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2628309 05/16/12 02:14 PM
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Zako2 Offline
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Originally Posted By: Mark_S
I have MaxLife Dex/Merc in it now, and was chastised for using it instead of Mercon V. Valvoline says it is suitable to use, but, I am inclined to agree with those who say I should use only Mercon V. In the near future I will do a pan drop, filter change, and complete flush with Mercon V. I was curious if anyone knew or had good experience with the Lubegard Flush.


I think Valvoline's web site is wrong on Mercon V compatibility. The Maxlife Dex/Merc bottle does not list compatibility with Mercon V, but the web site and the product data sheet still claim compatibility with Mercon V. I would take their claim with a grain of salt because the bottle also lists compatibility with Mercon LV. Supposedly, Mercon V and LV are mutually incompatible. I believe, you can't have a fluid that works for both. Another trouble sign is that the manual lists viscosity at 100C 6.11 cst. This is below ALL Mercon V compatible fluids. All of those that I checked claim this viscosity above 7cst. I really don't know what Valvoline's marketing is thinking.

However, Lubegard claims that a bottle of Lubegard Platinum or Green will bring the properties of fluid to the level of Mercon V. You could try to use one of those. Lubegard recommends the red bottle for transmissions that already use correct grade, unless the transmission has developed shudders, in which case the platinum bottle is recommended even with correct grade.

Last edited by Zako2; 05/16/12 02:17 PM.
Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2629086 05/17/12 11:23 AM
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KCJeep Offline
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Originally Posted By: Mark_S
Thanks for the replies. On another thread I told about this transmission (2004 Mercury Sable DOHC). When cold, everything shifts smoothly. After getting hot, the engine will (sometimes) tac up to about 2000 RPM's before shifting into 2nd gear, and there is a bumping when moving in reverse from a dead stop. Both issues are from a dead stop.

I have MaxLife Dex/Merc in it now, and was chastised for using it instead of Mercon V. Valvoline says it is suitable to use, but, I am inclined to agree with those who say I should use only Mercon V. In the near future I will do a pan drop, filter change, and complete flush with Mercon V. I was curious if anyone knew or had good experience with the Lubegard Flush.

One poster said it sounded like my problem was due to the fluid thinning as the transmission heated up. That makes sense, so I also plan to put a bottle of Lubegard Red in the mix since it is claimed to lower fluid temperature, keeping the viscosity higher.

Does anyone know how much Lubegard Red lowers temperature (assuming it does)? Are we talking fractions of a degree or many degrees? Anyone seen any data on this?


I have a similar problem in my wifes Venture, it's fine until fully heated up then it will occasionally slam shift. My understanding is it's a sticking governor solenoid. While Lubegard Red did shorten the loooonnnggg shifts and eliminate the occasional slip, it hasn't helped the slam shifting. Seafoam Trans tune, Lube Gard flush and (cringe) Lucas didn't either FYI, so if you have something sticking when fully warmed up I haven't figured out how to beat it yet (without actual work).


2018 VW Passat GT VR6 - 14k - Castrol Pro OE 5w40 - VW OEM filter
2012 KIA Sedona 101k - Valvoline Maxlife 5w30
2009 Ford Focus 138k - Valvoline 5w30
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Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2633947 05/23/12 07:49 AM
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The use of proper Mercon V is a critical issue, for sure. Remember that MV only came into existence due to Ford's realization that their ATXs were so poorly designed and applied, that they would shudder right off of the assembly line.

While I am a believer in LG products, I am also a believer that before you start using additives and such, you should make sure you have the right fluids in there in the first place.


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Re: Lubegard Automatic Transmission Flush [Re: DoubleWasp] #2634032 05/23/12 10:07 AM
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OVERKILL Offline
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Originally Posted By: DoubleWasp
The use of proper Mercon V is a critical issue, for sure. Remember that MV only came into existence due to Ford's realization that their ATXs were so poorly designed and applied, that they would shudder right off of the assembly line.

While I am a believer in LG products, I am also a believer that before you start using additives and such, you should make sure you have the right fluids in there in the first place.


The converter shudder in the 4R70W (and not in the AOD it was based on.....) didn't affect the life of the transmission. And for a "poorly designed" transmission, they sure held up well in the F-150, Crown Vic, Grand Marquis, Lincoln Town Car, Expedition, Explorer...etc and in LEO and TAXI service......


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Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2634135 05/23/12 12:49 PM
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SteveSRT8 Offline
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^^^Likewise.

My FIL had an old Tbird that shuddered for years, it really does nothing but annoy the driver.

Since the TC is a separate component of the driveline from the trans we should say "poorly designed TC". The trans is/are fine.


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Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2634164 05/23/12 01:24 PM
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Ben99GT Offline
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I wasn't aware that a grabbier TCC friction material constitutes a poorly design trans.


2001 F150 Supercrew 4.6 - 321,000 miles- PP 5W-20/MC FL-820S
2011 Shelby GT500 SVTPP - 705 RWHP - PP Euro 0W-40/Wix 51372XP

Re: Lubegard Automatic Transmission Flush [Re: Mark_S] #2634212 05/23/12 02:22 PM
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SteveSRT8 Offline
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It doesn't. That's why I separated the TC from the trans in my post!


"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
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