Duralube, anyone use it???

[porschpow]

Did anyone use duralube with their tranny oil? (Even Mercon V)

A buddy of mine told me about it. He has a 97 MGM and said to dump it in with the tranny fluid

[miamibob]

Don't need it if you are using Mercon V. I have used it with Mercon/Dextron but have no scientific proof to back up any claims.

[gadget73]

Most of that stuff is just a shot of the friction modifiers and such that come in fluid. Its used to renew dead fluid or fake it into acting like Mercon V, but really if the friction modifiers are used up or you're just using the wrong fluid, the fix in both cases is to change it to new correct blood.

[Brown_Muscle]

my girlfriend seems to enjoy it

[miamibob]

my girlfriend seems to enjoy it

I thought, for that, you would want MORE friction rather than less? Must be doing it wrong all these years.....

[cheaneyt]

I thought, for that, you would want MORE friction rather than less? Must be doing it wrong all these years.....

Haaaaaaaaaaa

[IPreferDIY]

Most of that stuff is just a shot of the friction modifiers and such that come in fluid. Its used to renew dead fluid or fake it into acting like Mercon V, but really if the friction modifiers are used up or you're just using the wrong fluid, the fix in both cases is to change it to new correct blood.

+1. Here's my experiences with DuraLube:

I bought into it many years ago after watching an infomercial that included the following demos:

https://www.youtube.com/watch?v=lSm1K9JATyU

One of the claims in the infomercial was that a special compound in DuraLube actually stays bound within the micropores of the metal surface and thereby helps to reduce friction. This sounds great in theory.

IIRC, the first car I tried the engine stuff in was a four cylinder Mercery Topaz. At that time, they recommended using it only once every several oil changes or so. I didn't notice anything with it in the oil, but after changing the oil and not adding anything, my coolant temp gauge was reading lower. Instead of the needle being between the R and M, the needle was consistently down on the M, even after further oil changes. I have no idea if that was the DuraLube or what. Notably, I have not experienced this effect in any other cars that I've used the stuff in.

When I saw they had a tranny product, I thought that was a great idea and tried it. I didn't notice any obvious effect.

I've used the fuel stuff too. It seemed to make things smoother, but query whether any fuel injector cleaner would do that.

NB that I only bought the stuff on sale when it was well below the regular price.

When I looked into DuraLube recently, I learned they had once settled a big FTC case relating to lack of evidence for their claims. Somewhere along the line, I saw someone claim that DuraLube has some kind of compound (possibly with chlorine) that is actually corrosive. If this is true, I wouldn't use it in a tranny. It's one thing to use it once in the engine, but leaving it in a tranny would concern me. I might put it in if a bought a used car and just did a "suck and fill" pending a J-MOD, but I wouldn't take my chances with leaving it in.

Considering that my cars are destined to rot out eventually from Canadian winters, any life-extending properties of any additives or synthetics would probably not be worthwhile for me. I would need convincing evidence of a performance gain before wasting my money.

[murphmobile2]

I'll stick with Lucas, I've never had any problems using it.

[sly]

I use a bottle of injector cleaner every 3-4 years. That's the only additive any of my cars see any more.