LUCAS oil stabilizer in my G56...S M O O T H!

[Motorhead]

I decided to beef up the oil in my G56 before I sealed the shift tower back on from installing my Southbend Con OFE. I drove the truck after the new clutch install but before the LUCAS additive. Not bad... I drained out a pint and a half of the ATF and poured 1. 5 quarts of LUCAS oil stabilizer into the top of the trans. This is about 25% concentration of LUCAS, (recommended % amout) plus it over fills the trans by about 1 quart. Man, What a difference in shifting! Cut out the notchyness. The trans at idle in neutral is quiet even with the Con OFE. I can use low gear now to start off and it shifts smooth into second now. Second to third shifts like butter. I have 21,000 mi total on the truck. In the 40+ years of wrenching, I have NOT been a big additive user. This stuff works!

 

[MMeier]

I use that stuff in everything, right down to the little air cooled Honda on the pressure washer and the mower. Going to put some in my 5600 when I service it here soon.

 

[SierraRam]

Thanks for the update, I will give it a try especially if it quites down the neutral noise.

 

[Scooby]

You have ATF in your manual transmission?

 

[seafish]

You have ATF in your manual transmission?

Yup... so do you!

The G56 standard transmission uses synthetic ATF for lubrication.

While I do love the idea of reducing the slightly notchy shifting I experience with my G56, I am concerned about using additives, especially while under warranty. NOT that I want to discourage anyone from doing what they feel or even experience as help, but I am even more concerned after reading this article/test on bobistheoilguy.com.



Here is the link about Lucas additive. Please note that he expected it to do GOOD things also.



What about Additives?



EVERYBODY PLEASE NOTE that my post is not meant to be a slam about Lucas, only a "watchout" for what you might want to add to your lubes. I found this link about lucas while further researching whether I wanted to do what the original poster has done to help eliminate the notchy shifting that I ALSO experience!!!#@$%!

 

[amsoilman]

I wouldn't put an additive in ANY lubricant... ... ... ... ... ... ..... Period! Lubricants are formulated with proper additives for the application. When you add an aftermarket additive, you really don't know what the additive is! All you know is that it is an additive. The chemicals within the additive can cause some serious problems, sometimes immediate, sometimes down the road. I seen a demonstration of adding "BLEACH" to an oil, and the friction quality was enormous! However, I would never put "BLEACH" in my lubes, would you?



Wayne

 

[Scooby]

Yup... so do you!

Well get out of town! :-laf



I'm probably up for changing my fluid soon also..... thanks for the enlightenment...

 

[Motorhead]

Yup... so do you!
The G56 standard transmission uses synthetic ATF for lubrication.
While I do love the idea of reducing the slightly notchy shifting I experience with my G56, I am concerned about using additives, especially while under warranty. NOT that I want to discourage anyone from doing what they feel or even experience as help, but I am even more concerned after reading this article/test on bobistheoilguy.com.

Here is the link about Lucas additive. Please note that he expected it to do GOOD things also.

What about Additives?

EVERYBODY PLEASE NOTE that my post is not meant to be a slam about Lucas, only a "watchout" for what you might want to add to your lubes. I found this link about lucas while further researching whether I wanted to do what the original poster has done to help eliminate the notchy shifting that I ALSO experience!!!#@$%!

I post this with no malice to seafish... I appreciate the link.

My question on the oil foaming demo was... You take an oil that already foams on its own and then add the additive and the demo slams the additive for the further foaming. I would like to see the demo done with an oil that doesn't foam and then add the additive like Lucas and then see.
My Own Personal opinion..... ATF just doesn't seem heavy enough for a medium duty standard transmission. NOTE: I AM NOT a lubrication engineer.

 

[amsoilman]

I post this with no malice to seafish... I appreciate the link.



My question on the oil foaming demo was... You take an oil that already foams on its own and then add the additive and the demo slams the additive for the further foaming. I would like to see the demo done with an oil that doesn't foam and then add the additive like Lucas and then see.

My Own Personal opinion..... ATF just doesn't seem heavy enough for a medium duty standard transmission. NOTE: I AM NOT a lubrication engineer.

NO oil should foam to the degree of what was shown in the demo on "bob-is-the-Oil-Guy".

Foaming is defined as an agglomeration of gas bubbles separated from each other by a thin liquid film. If the oil is said to not foam, the small air bubbles will quickly combine, become larger bubbles, and then break to vent to the atmosphere. If this action occurs slowly, the oil is said to foam.



ALL Oils have an "anti-Foaming" additive in place. The additive is used to suppress the foaming tendency of lubricants in service. Improper amounts of antifoam will lead to air entrainment, which also leads to lubrication problems.



Now, if you put an AFTERMARKET additive in an oil that already has an anti-foam additive in place, you may cause what was shown in the demo.

When Oils are formulated, they have been carefully engineered to have the proper additives in the correct amount for the application to which it is going to be used in.



Now as to your thought about the G-56 using an ATF fluid, ATF has a (AGMA) American Gear Manufacturers Association rating of GL-1. You can perhaps relate this to the Gear lube required for you differential, as it requires a AGMA rating of a GL-5 fluid.



The manufacturer of the transmission/gearboxes are the ones that make these requirements, The G-56 does require ATF due to the design of the transmission.



Using ATF in standard transmissions, has been going on since the early 60’s, so is not a new thing in the automotive industry!



Wayne

amsoilman