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Project Farm Lucas transmission additive video #5328599 01/21/20 09:43 AM
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1978elcamino Online Content OP
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I recently saw a project farm video that was about a high mileage honda accord v6 automatic that had some odd shifting going on. Some shifts were latent and appeared to him as slight slippage. He added the Lucas additive and the video showed overall shifting improvement. What I thought was interesting was the VOA from Blackstone on the Lucas. Basically, the Lucas has just about no additives but a very high viscosity index. So the conclusion was the Lucas makes the fluid thicker. As I suspected, magic transmission rebuild in a bottle is snake oil that raises the viscosity and nothing more.


2018 F150 5.0
2016 Ford Fusion 2.5
Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328603 01/21/20 09:47 AM
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old1 Offline
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I am NOT a fan of Lucas, but is the transmission product also a vI improver like the engine oil product, or something entirely different?


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Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328609 01/21/20 09:57 AM
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mpack88 Offline
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I just put some in a 2001 Saturn SL1. It was slipping real bad between 2 and 3 I added that bottle and the slipping stoped imediately. It don't fix anything but if it can prolong its life for a little old Saturn then it's worth it to me.

Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328621 01/21/20 10:15 AM
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kschachn Offline
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Originally Posted by 1978elcamino
I recently saw a project farm video that was about a high mileage honda accord v6 automatic that had some odd shifting going on. Some shifts were latent and appeared to him as slight slippage. He added the Lucas additive and the video showed overall shifting improvement. What I thought was interesting was the VOA from Blackstone on the Lucas. Basically, the Lucas has just about no additives but a very high viscosity index. So the conclusion was the Lucas makes the fluid thicker. As I suspected, magic transmission rebuild in a bottle is snake oil that raises the viscosity and nothing more.

Blackstone measures viscosity index? How?


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Re: Project Farm Lucas transmission additive video [Re: kschachn] #5328632 01/21/20 10:33 AM
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1978elcamino Online Content OP
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Originally Posted by kschachn
Originally Posted by 1978elcamino
I recently saw a project farm video that was about a high mileage honda accord v6 automatic that had some odd shifting going on. Some shifts were latent and appeared to him as slight slippage. He added the Lucas additive and the video showed overall shifting improvement. What I thought was interesting was the VOA from Blackstone on the Lucas. Basically, the Lucas has just about no additives but a very high viscosity index. So the conclusion was the Lucas makes the fluid thicker. As I suspected, magic transmission rebuild in a bottle is snake oil that raises the viscosity and nothing more.

Blackstone measures viscosity index? How?


Maybe Im wrong on that, I watched it last night. IIRC he said in the video that it raises viscosity and makes it thicker.


2018 F150 5.0
2016 Ford Fusion 2.5
Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328659 01/21/20 11:07 AM
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They measured the viscosity, not the viscosity index. I think in general when you see a high viscosity oil in an application that normally calls for a thinner oil, such as transmission fluid, you could assume it's a VII instead of a thicker base oil.

A VII will not get diluted as easy as just a thicker base stock, and therefore more functional. The instructions say to use 24 oz in a transmission which in my F150 has a capacity of 16-17 quarts.


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Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328674 01/21/20 11:40 AM
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It's just a bottle of heavy olefin copolymer with a really poor shear stability index.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Project Farm Lucas transmission additive video [Re: RDY4WAR] #5328682 01/21/20 11:49 AM
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OVERKILL Offline
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Originally Posted by RDY4WAR
It's just a bottle of heavy olefin copolymer with a really poor shear stability index.


This. It made the fluid thicker. It did not improve on any of the characteristics of the existing fluid and in fact it diluted them with cheap, heavy brightstock. But the thicker fluid changed the behaviour of the unit so perception is that it "works".


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Re: Project Farm Lucas transmission additive video [Re: OVERKILL] #5328728 01/21/20 12:32 PM
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1978elcamino Online Content OP
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Originally Posted by OVERKILL
Originally Posted by RDY4WAR
It's just a bottle of heavy olefin copolymer with a really poor shear stability index.


This. It made the fluid thicker. It did not improve on any of the characteristics of the existing fluid and in fact it diluted them with cheap, heavy brightstock. But the thicker fluid changed the behaviour of the unit so perception is that it "works".


Got it, that makes sense.

I also wondered why someone would use their oil product. Example; the vehicle specs 5w20, next OCI use 10w30 or maybe even a 15w40. This results in a full add pack and thicker oil instead of diluting the current fill with a quart of lucas.


2018 F150 5.0
2016 Ford Fusion 2.5
Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328751 01/21/20 12:56 PM
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RDY4WAR Online Content
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By making the fluid more viscous, it increases charge pressure which puts more pressure on the clutch packs to grip. The problem with that is it increases pressure to every other part of the transmission including the torque converter. I've torn down a few engines with eaten up thrust bearings because of high charge pressure pounding the converter and flexplate causing the crank to want to walk forward in the block. This isn't a realistic issue with a small dose, but not a direction you want to go.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Project Farm Lucas transmission additive video [Re: kschachn] #5328795 01/21/20 01:55 PM
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Originally Posted by 1978elcamino
I recently saw a project farm video that was about a high mileage honda accord v6 automatic that had some odd shifting going on. Some shifts were latent and appeared to him as slight slippage. He added the Lucas additive and the video showed overall shifting improvement. What I thought was interesting was the VOA from Blackstone on the Lucas. Basically, the Lucas has just about no additives but a very high viscosity index. So the conclusion was the Lucas makes the fluid thicker. As I suspected, magic transmission rebuild in a bottle is snake oil that raises the viscosity and nothing more.


No metallic additives. VOA won't show ashless additives.

Originally Posted by RDY4WAR
By making the fluid more viscous, it increases charge pressure which puts more pressure on the clutch packs to grip. The problem with that is it increases pressure to every other part of the transmission including the torque converter. I've torn down a few engines with eaten up thrust bearings because of high charge pressure pounding the converter and flexplate causing the crank to want to walk forward in the block. This isn't a realistic issue with a small dose, but not a direction you want to go.


I agree; I don't think it's a good idea to use it.

Last edited by Brian553; 01/21/20 01:57 PM.





Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328828 01/21/20 02:42 PM
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Only trans additive I will personally use is Lubegard Red. I have heard good results of the Trans-X conditioner or whatever it is in the blue bottle for slipping transmissions, but I've never personally used it. To me, Lucas is just deceptive marketing speak for "don't use, avoid at all costs". They won't get any of my nickels.


De omnibus dubitandum.
Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328850 01/21/20 03:03 PM
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Back in the day, I had a buddy who’s dad owned a use car lot
If he had a car with a slipping trans he’d put a couple of cans of STP in the transmission to get it through the auction sale.
It worked for a short time not sure how it worked long term

Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328933 01/21/20 05:08 PM
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thastinger Offline
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Originally Posted by 1978elcamino
I recently saw a project farm video that was about a high mileage honda accord v6 automatic that had some odd shifting going on. Some shifts were latent and appeared to him as slight slippage. He added the Lucas additive and the video showed overall shifting improvement. What I thought was interesting was the VOA from Blackstone on the Lucas. Basically, the Lucas has just about no additives but a very high viscosity index. So the conclusion was the Lucas makes the fluid thicker. As I suspected, magic transmission rebuild in a bottle is snake oil that raises the viscosity and nothing more.


Before Forest Lucas started selling his snake oils, sawdust was used to do the same thing

Re: Project Farm Lucas transmission additive video [Re: 1978elcamino] #5328935 01/21/20 05:10 PM
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I think it will help out a transmission on its last legs like the one in the video because the extra viscosity is obviously helping with the slipping clutch packs. It would be nice if there was actually thicker fluid than stock fluid available that still meets the specs for certain transmissions, that might help when the transmission is starting to get on the lazy side.

This might delay getting to the state where it's actually slipping badly like the one in the video. He admitted that it's still going to fail anyway, probably in the next 10-15k miles. That's the only case where I would bother with the Lucas. If you plan on rebuilding the existing transmission, the Lucas could be a bad idea if the extra viscosity and pressure hurts other parts of the transmission by the time you go to rebuild it.


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