Diff and Tranny fluids
Originally Posted by xeuxx,Dec 4 2009, 10:01 AM
Trans=
Honda Green Label 2 Quarts. You won't be able to get it all in there but nearly all of it. It's so cheap too!!! I have tried a few other brands, and found that my trans loves Honda MTF the best.
Diff=
I just use M1 75w90 you only need a quart. (Get the bottle with LS on the outside for LSD diffs)
Honda Green Label 2 Quarts. You won't be able to get it all in there but nearly all of it. It's so cheap too!!! I have tried a few other brands, and found that my trans loves Honda MTF the best.
Diff=
I just use M1 75w90 you only need a quart. (Get the bottle with LS on the outside for LSD diffs)
Originally Posted by Nate4635,Dec 4 2009, 08:33 PM
https://www.s2ki.com/forums/index.php?showtopic=199972
Excerpt
"It has taken months, and a tip from a friend at Honda engineering but I found the Honda MTF spec. It is called MTF-7289. It is as I guessed a light gear oil of 75w/80w viscosity, equivalent to a 10w30 engine oil. We know it has about the same additives as engine oils but with more calcium, ostensibly to friction modify the oil to have more "bite" for better synchro function."
Now there was a bit in there about it breaking down - but i think that was cured with the new formulation of the Honda MTF.
But, like Ramocheese said, I think the additives are the difference. Of course most additive packages are pretty proprietary, which makes it hard to prove - but from what I've seen from these oils, and most importantly my UOA (and others), I'm sold
Excerpt
"It has taken months, and a tip from a friend at Honda engineering but I found the Honda MTF spec. It is called MTF-7289. It is as I guessed a light gear oil of 75w/80w viscosity, equivalent to a 10w30 engine oil. We know it has about the same additives as engine oils but with more calcium, ostensibly to friction modify the oil to have more "bite" for better synchro function."
Now there was a bit in there about it breaking down - but i think that was cured with the new formulation of the Honda MTF.
But, like Ramocheese said, I think the additives are the difference. Of course most additive packages are pretty proprietary, which makes it hard to prove - but from what I've seen from these oils, and most importantly my UOA (and others), I'm sold

To your statement about the heat think clearances. Your piston rings have a much smaller clearance's than your gearbox. This is why when it thins out its ok."
Also how can a 75w-80 have the same viscosity as a 10w-30?
Do what you want it's your car. I was just trying to give my opinion.
Originally Posted by Chubby Ninja,Dec 7 2009, 05:08 PM
Honda also recommends replacing all wearable items with honda parts(brakes, shocks, wipers, spark plugs etc....)
They did for a long time. Then Im sure they said hey we can corner the market and make some money by adding an additive to what in essence is 10w30 and say run only this in honda MT. I worked in honda service for a couple years. I saw alot of people who drove on MTF for hundreds of thousands of miles just fine, I also saw people who ran amsoils version for hundreds of thousands of miles, I also saw people who ran motor oil in just fine. I have nothing against mtf. I think Honda did great by saying hey dont run conventional 10w30 in your transmission any more, we have this new mtf that we think works better, then they switched it again when their 6spds were having problems in the accords, civics, s2000s, tsx's, and cl's. Mtf is quite a bit cheaper then running most synthetic alternatives, Which I think is fine for most people. But me personally I have used both and I am going to stick with the synthetics.
Originally Posted by Chubby Ninja,Dec 7 2009, 09:08 PM
They did for a long time. Then Im sure they said hey we can corner the market and make some money by adding an additive to what in essence is 10w30 and say run only this in honda MT. I worked in honda service for a couple years. I saw alot of people who drove on MTF for hundreds of thousands of miles just fine, I also saw people who ran amsoils version for hundreds of thousands of miles, I also saw people who ran motor oil in just fine. I have nothing against mtf. I think Honda did great by saying hey dont run conventional 10w30 in your transmission any more, we have this new mtf that we think works better, then they switched it again when their 6spds were having problems in the accords, civics, s2000s, tsx's, and cl's. Mtf is quite a bit cheaper then running most synthetic alternatives, Which I think is fine for most people. But me personally I have used both and I am going to stick with the synthetics.
Originally Posted by iApex,Dec 8 2009, 12:41 AM
If honda wanted to make money they would make a synthetic oil and tell you to only run that, which would be, expensive oil in everything including the gearbox. Honda knows most people switch to synthetic, yet they don't make a synthetic oil. Wouldn't that be a easy way to make alot of money? Honda wouldn't have wasted TONS of money enginnering a MTF if 10w-30 was fine. They would have just put 10w-30 in a different bottle and relabeled it. Running a synthetic MTF is fine as long as its not 10w-30. I'm sorry your not going to convince me that running a 10w-30 in your gearbox is good. I don't think cost is the issue either why people don't run synthetic 10w-30 in thier gearboxes.
So to the original ?. Use what feels best to you.
Originally Posted by Chubby Ninja,Dec 8 2009, 05:33 PM
I respect your opinion and I dont think its a bad one by any means. I just know what I have seen work and what I have seen work better. I am not a honda engineer or dont claim to be one. I know what I have seen and experienced, and I have used fluids that felt and held up better than MTF. Honda knows that their are a lot of oil manufactures out there. They know that some spend tons of money on developing their products and others dont. So to keep the consumer safe from buying crap and putting it in their transmission they market their own. They also profit off it by the fact that manufacturing conventional is cheaper then making a synthetic oil. They can make and sell conventional for more of a profit, then they could if they paid someone to manufacture and sell their synthetics.
So to the original ?. Use what feels best to you.
So to the original ?. Use what feels best to you.
Also keep in mind all transmissions may react differently to various trans fluids.



