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Slipping transmission, can one try Lubguard red? #4444664
06/29/17 08:51 AM
06/29/17 08:51 AM
Joined: Mar 2012
Posts: 200
Southern NY
MoneyJohn Offline OP
MoneyJohn  Offline OP
Joined: Mar 2012
Posts: 200
Southern NY
A friend of mine has 2005 Hyundai Elantra with ~154,000 miles on it. Its not their primary car but a backup car. Yesterday, when we were discussing my transmission fluid change and plans of adding Lubguard Red during the last change in a month's time, he mentioned his car is slipping transmission and if he can try in it.

We went for a short ride and did notice that on a slope, the RPM goes up but not the speed. The max speed he can go up the hill is 20mph. I forgot to ask him when he changed the transmission fluid last but if he changes now, can he try Lubguard Red or Lucas Transmission fix in it? Which one would be better?

Thanks in advance.


2015 Subaru Forester 2.5i Premium w/ EyeSight
2006 Nissan Sentra 1.8S Special Edition
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444687
06/29/17 09:08 AM
06/29/17 09:08 AM
Joined: Jun 2017
Posts: 541
DFW
JustN89 Offline
JustN89  Offline
Joined: Jun 2017
Posts: 541
DFW
I prefer the Lubegard Red, but that's just my opinion from how it performs in my 2005 Impala. I haven't tried Lucas Transmission Fix in anything so I don't have much of an opinion, but if you read around here there doesn't seem to be many positive thoughts of Lucas. The most important thing to trying to fix the slip will be replacing the fluid and filter, assuming that hasn't been done before. I would drop the pan and replace the filter, add HYUNDAI SPIII ATF fluid and add a bottle of Lubegard if you would like. If it were me, I'd probably replace fluid/filter first, run that 15k or so miles and if the transmission was shifting better, replace the fluid again and add a bottle of Lubegard and extend the fluid interval.


If you need help with the process, hyundai-forums.com offers some pretty good resources for some "how-to" guides.

Last edited by JustN89; 06/29/17 09:12 AM. Reason: Adding website
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444688
06/29/17 09:09 AM
06/29/17 09:09 AM
Joined: Jun 2002
Posts: 6,348
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,348
MI
It would be good to have the vehicle checked with a good scan tool to see if there are any trouble codes. Several times over my lifetime I have had apparent tranny slippage symptoms and found out it was actually a related electrical part that was going bad. For example, a failing $25 speed sensor can confuse the ECM or TCM, making the tranny seem to slip.

With today's excellent modern transmission fluids, I am leery that Lubguard Red would do anything more than what new fluid would (clean varnish off, etc.). I don't think that Lubegard Red has much in the way of "healing powers". Some report that Lucas Transmission Fix has resulted in improved performance. I think in most cases it is considered a last ditch effort to get just a few more miles out of a defective transmission.

Change the fluid and filter first. Get that vehicle scanned!! Save the mechanic-in-a-can for the last try.

Re: Slipping transmission, can one try Lubguard red? [Re: doitmyself] #4444713
06/29/17 09:24 AM
06/29/17 09:24 AM
Joined: Apr 2017
Posts: 619
Ohio
hallstevenson Offline
hallstevenson  Offline
Joined: Apr 2017
Posts: 619
Ohio
Originally Posted By: doitmyself
It would be good to have the vehicle checked with a good scan tool to see if there are any trouble codes. Several times over my lifetime I have had apparent tranny slippage symptoms and found out it was actually a related electrical part that was going bad. For example, a failing $25 speed sensor can confuse the ECM or TCM, making the tranny seem to slip.
Makes me wonder if that could be what I'm seeing in my '99 Accord (4-cylinder). It doesn't always slip from 2-3 and even if it is, I can "control" it and literally make it not slip by the amount of throttle I give. I do have a check engine light on but it's the infamous P0409 or something like that and it's related to the catalytic converter. If I understand Honda codes, at least with some testers, it only shows one code at a time so until I got this P0409 cleared, I can't see any others.

Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444718
06/29/17 09:28 AM
06/29/17 09:28 AM
Joined: Jun 2013
Posts: 525
Albany, NY
ford46guy Offline
ford46guy  Offline
Joined: Jun 2013
Posts: 525
Albany, NY
Doitmyself has great advice, it could be something very simple. A competent trans tech or even the owner with research can see where the problem is. Driving it with the slipping is just killing it though.

Slipping produces extremely high temperatures. If it was driven like that there is likely massive damage. Slipping can come from many things from tired fluid to leaking valve bodies or worn clutches.

Lubegard red is more of an additive package. Like others said Lucas is probably a better choice. It will thicken things up and maybe get a month, maybe 5 years. Maybe both Lucas and lubegard, nothing to lose

I wouldn't say to change the fluid now.


95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Slipping transmission, can one try Lubguard red? [Re: doitmyself] #4444722
06/29/17 09:31 AM
06/29/17 09:31 AM
Joined: Mar 2012
Posts: 200
Southern NY
MoneyJohn Offline OP
MoneyJohn  Offline OP
Joined: Mar 2012
Posts: 200
Southern NY
Originally Posted By: doitmyself
It would be good to have the vehicle checked with a good scan tool to see if there are any trouble codes. Several times over my lifetime I have had apparent tranny slippage symptoms and found out it was actually a related electrical part that was going bad. For example, a failing $25 speed sensor can confuse the ECM or TCM, making the tranny seem to slip.

Wouldn't there be a check engine light then or transmission codes are not reported by the check engine light? His check engine light is not on. He actually did a lot of work (not exactly sure of what) few months ago when anti-freeze hose burst open.


2015 Subaru Forester 2.5i Premium w/ EyeSight
2006 Nissan Sentra 1.8S Special Edition
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444725
06/29/17 09:32 AM
06/29/17 09:32 AM
Joined: Jun 2017
Posts: 147
Waco, Tx.
Syntheticuser Offline
Syntheticuser  Offline
Joined: Jun 2017
Posts: 147
Waco, Tx.
Change the fluid. Go from there.

Re: Slipping transmission, can one try Lubguard red? [Re: doitmyself] #4444728
06/29/17 09:33 AM
06/29/17 09:33 AM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
Originally Posted By: doitmyself
It would be good to have the vehicle checked with a good scan tool to see if there are any trouble codes. Several times over my lifetime I have had apparent tranny slippage symptoms and found out it was actually a related electrical part that was going bad.


Agreed. And stop driving it that way until you diagnose it properly.... or you'll just kill the trans instead.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444756
06/29/17 09:52 AM
06/29/17 09:52 AM
Joined: Mar 2014
Posts: 3,244
NJ
Leo99 Offline
Leo99  Offline
Joined: Mar 2014
Posts: 3,244
NJ
Lubegard Red is advertised to keep the fluid cooler and prevent problems. I don't see anything on the box advertising it will fix things.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles
2004 Rav4 359,000 miles
2015 Camry 59,000 miles
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444773
06/29/17 10:10 AM
06/29/17 10:10 AM
Joined: Dec 2014
Posts: 1,671
'murica
Ethan1 Offline
Ethan1  Offline
Joined: Dec 2014
Posts: 1,671
'murica
Originally Posted By: MoneyJohn
Originally Posted By: doitmyself
It would be good to have the vehicle checked with a good scan tool to see if there are any trouble codes. Several times over my lifetime I have had apparent tranny slippage symptoms and found out it was actually a related electrical part that was going bad. For example, a failing $25 speed sensor can confuse the ECM or TCM, making the tranny seem to slip.

Wouldn't there be a check engine light then or transmission codes are not reported by the check engine light? His check engine light is not on. He actually did a lot of work (not exactly sure of what) few months ago when anti-freeze hose burst open.


Yesterday I saw a car with 14 codes and no warning lights.

Re: Slipping transmission, can one try Lubguard red? [Re: Syntheticuser] #4444801
06/29/17 10:45 AM
06/29/17 10:45 AM
Joined: Sep 2014
Posts: 1,401
Seattle-ish, WA
Oro_O Offline
Oro_O  Offline
Joined: Sep 2014
Posts: 1,401
Seattle-ish, WA
Originally Posted By: Syntheticuser
Change the fluid. Go from there.


+1. Start with a known good baseline condition. Many people with the older SPIII spec fluid replac eit with MaxLife with excellent results.

Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444877
06/29/17 11:52 AM
06/29/17 11:52 AM
Joined: Jan 2011
Posts: 2,711
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,711
N.Ohio
Once it slips, the damage is likely done but a pan drop/filter change with the LG can't hurt (one ounce per quart capacity)and he might get surprised.Atleast it would be useful to see what's lurking on the bottom of the pan.

Last edited by Lubener; 06/29/17 11:54 AM.

The "thinking" man's friend.
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444891
06/29/17 12:02 PM
06/29/17 12:02 PM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio
My personal experience with a slipping trans: I had an issue before with a Lexus trans from a junkyard that slipped so badly the car wouldn't even move. I changed the filter about three times, capturing fine particles every time, until the trans was cleared out of the particles. They were clogging the trans filter and thus preventing fluid from reaching the clutches. The trans worked for a couple of years after that with no further attention. When it finally failed, the trans filter was no longer the issue. So a cheap fix could be a trans filter for now.


too many cars and oil combinations to list in 150 characters or less
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4444903
06/29/17 12:16 PM
06/29/17 12:16 PM
Joined: Feb 2007
Posts: 3,640
Southeast
meep Offline
meep  Offline
Joined: Feb 2007
Posts: 3,640
Southeast
LG isn't going to do anything.

something is wrong.

the fluid may be sheared stupid-thin, maybe, in which case a full fluid change might help lessen the problem.

the filter might possibly be clogged, lowering line pressure

slipping is either from inadequate hydraulic pressure, or worn clutch media. low pressure can be caused by a failing solenoid, clogged filter, low fluid level, blown intake seal....

you really need to start from the bottom up. check fluid, check filter, perform maintenance, and then diagnose from there.


2018 F150
2015 crv (wifey!)
Re: Slipping transmission, can one try Lubguard red? [Re: MoneyJohn] #4445448
06/29/17 10:06 PM
06/29/17 10:06 PM
Joined: Jun 2017
Posts: 147
Waco, Tx.
Syntheticuser Offline
Syntheticuser  Offline
Joined: Jun 2017
Posts: 147
Waco, Tx.
Change the fluid and check for codes. Clear them, take the pos battery cable off and turn the lights on for 10 minutes. Then reconnect the cable, start car check fluid level, then go for a drive. A pan drop with a filter change if it has one is not an option at this point. IT IS A MUST DO! no additivees.

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