Amsoil MTF/Honda MTF 2004 S2000

[INDYMAC]

Some S2000 owners have tried the RL MTL. Most seemed to like it. I have seen a VOA but no UOA's. Some others have experimented with mixing it with MT-90 too with good results.

If I become dissatified with Amsoil MTF, maybe I'll test RL MTL. The VOA showed a 10.1 cSt@100C but did not show a VI.

 

[CATERHAM]

Amsoil MTF has a 190 VI which is even higher RL MTL according to their PDS:

http://www.amsoil.com/lit/databulletins/g2080.pdf

Amsoil hasn't been on my radar screen of late but I might even try it next time.

 

[gtoracer]

I have had Redline MTL in the tranny of my 03 s2k for at least 5yrs and 30,000 miles, no problems it has never popped out of 1st since I bought with 11000 miles on in 05. I am planning on changeing it with MTL soon.

 

[Bror Jace]

When I bought my '05 S2000, it only had 14,900 miles on it ... but the factory fill was shot. Tranny was very graunchy, especially when cold. I dumped it and refilled with Honda MTF (the newer, thinner stuff). Better ... but not as good as I had hoped, not as good as all my FWD Hondas.

However, I have come to realize that this tranny, built by Aisin, I believe, is just not that great. Not a great/positive shift feel and easy to miss a shift if you aren't very careful.

Has anyone tried Royal Purple Syncromax? It is about the same thickness as the newer Honda MTF (about as thick as ATFs)

I love Amsoil MTF in my Civic and will probably switch the S2000 over to that stuff when I swap out the Civic's fluid again (probably soon) but I don't have high hopes for shift feel.

I have stayed away from Red Line Oil products in the last several years. Too many mixed performances and variations in batches.

 

[SOHCman]

Originally Posted By: Bror Jace
When I bought my '05 S2000, it only had 14,900 miles on it ... but the factory fill was shot. Tranny was very graunchy, especially when cold. I dumped it and refilled with Honda MTF (the newer, thinner stuff). Better ... but not as good as I had hoped, not as good as all my FWD Hondas.

However, I have come to realize that this tranny, built by Aisin, I believe, is just not that great. Not a great/positive shift feel and easy to miss a shift if you aren't very careful.

Has anyone tried Royal Purple Syncromax? It is about the same thickness as the newer Honda MTF (about as thick as ATFs)

I love Amsoil MTF in my Civic and will probably switch the S2000 over to that stuff when I swap out the Civic's fluid again (probably soon) but I don't have high hopes for shift feel.

I have stayed away from Red Line Oil products in the last several years. Too many mixed performances and variations in batches.

I have not used the RP syncromax personally, but it seems to be an inferior product based on other bitog reviews. I ran honda mtf the first 230k in my accord, at which point i swapped to the new thinner stuff because the old stuff becsme unavailable. It shifted ok, but now i am using amsoil after i found out how thin the type 2 is and like the shift feel.

 

[Bror Jace]

SOHCman,
I have been asking about RP Syncromax experiences for a couple years now and your bad experience is the 2nd one I've heard about. The other was a GM F-Body user (I believe it was a Tremec tranny they were using). Thanks for posting. I wasn't hot on trying this fluid ... and have now ruled it out completely.

 

[INDYMAC]

Here is my most recent UOA of Amsoil MTF after almost two years and 7146 miles/72406 on unit. Sample date was 6/21/2014 and tested by Polaris Labs.

Iron 11
Chromium 0
Nickel 0
Aluminum 3
Copper 3
Lead 9
Tin 0
Cadmium 0
Silver 0
Vanadium 0
Silicon 9
Sodium 2
Potassium 0
Titanium 0
Molybdenum 1
Antimony 0
Manganese 0
Lithium 0
Boron 0
Magnesium 4186
Calcium 67
Barium 0
Phosphorus 1223
Zinc 919
V100C 8.3 cSt
TAN 1.85

Quote:
Amsoil MTF Amsoil MTF Honda MTF Honda MTF
65,260 miles Clean Ref 55,149 miles Clean Ref
4,633 miles 8,707 miles
8/11/2012 8/11/2012 7/19/2010 7/19/2010

Iron 17 6 11 0
Chromium 0 0 0 0
Nickel 0 0 0 0
Aluminum 2 1 1 0
Copper 2 0 2 0
Lead 6 0 13 0
Tin 0 0 4 0
Cadmium 0 0 NA NA
Silver 0 0 0 0
Vanadium 0 0 NA NA
Silicon 11 6 9 5
Sodium 2 0 2 0
Potassium 0 0 2 0
Titanium 0 0 0 0
Molybdenum 2 0 2 0
Antimony 0 0 NA NA
Manganese 0 0 1 0
Lithium 0 0 NA NA
Boron 3 4 7 0
Magnesium 4,172 4,424 30 0
Calcium 94 39 2,964 3,042
Barium 0 0 0 0
Phosphorous 1,277 1,210 1,246 1,168
Zinc 957 985 1,532 1,329

SUSV@210 NA NA 45.9 50.8
cStV@100C 8.6 9.8 5.99 7.50
Water% TAN 2.08 2.29 4.0 3.7
Insolubles% NA NA 0.1 0.0

 

[INDYMAC]

Sorry about the post above. I was trying to bring the previous trend over for comparison, but it didn't work.

 

[INDYMAC]

Let's try it this way:

Here is my most recent UOA of Amsoil MTF after almost two years and 7146 miles/72406 on unit. The 2nd number is the reference oil. UOA Sample date was 6/21/2014 and tested by Polaris Labs.

Iron 11/6
Chromium 0/0
Nickel 0/0
Aluminum 3/1
Copper 3/0
Lead 9/0
Tin 0/0
Cadmium 0/0
Silver 0/0
Vanadium 0/0
Silicon 9/6
Sodium 2/0
Potassium 0/0
Titanium 0/0
Molybdenum 1/0
Antimony 0/0
Manganese 0/0
Lithium 0/0
Boron 0/4
Magnesium 4186/4424
Calcium 67/39
Barium 0/0
Phosphorus 1223/1210
Zinc 919/985
V100C 8.3 cSt/9.8 cSt
TAN 1.85/2.29

 

[Mr Nice]

Silly question...

But I noticed the Honda trans are overfilled from the factory when you remove the fill plug.

Is there any benefit to adding an extra 1/2 Pint of MTF to your manual trans ?

Would it change the shift smoothness with extra MTF ?

 

[INDYMAC]

No need to overfill. My tranny fill plug allows fluid to drain whenever I change the fluid, even though there was no overfill from the last servicing. It's from fluid expansion from heat (driving). I change the fluid when it's hot. You will find that the same thing happens when you change the differential fluid when it's hot.

 

[MINick]

Originally Posted By: INDYMAC
Let's try it this way:

Here is my most recent UOA of Amsoil MTF after almost two years and 7146 miles/72406 on unit. The 2nd number is the reference oil. UOA Sample date was 6/21/2014 and tested by Polaris Labs.

Iron 11/6
Chromium 0/0
Nickel 0/0
Aluminum 3/1
Copper 3/0
Lead 9/0
Tin 0/0
Cadmium 0/0
Silver 0/0
Vanadium 0/0
Silicon 9/6
Sodium 2/0
Potassium 0/0
Titanium 0/0
Molybdenum 1/0
Antimony 0/0
Manganese 0/0
Lithium 0/0
Boron 0/4
Magnesium 4186/4424
Calcium 67/39
Barium 0/0
Phosphorus 1223/1210
Zinc 919/985
V100C 8.3 cSt/9.8 cSt
TAN 1.85/2.29


Amsoil MTF shows consistently more wear, especially iron, or i am reading something wrong? I also bought Amsoil MTF for my S2000 gearbox

 

[Bror Jace]

MINick, what is the reference oil? Honda MTF II?

I'm switching this summer from Honda MTF II to Amsoil MTF in my '05 S2000 as I liked it better in my Civic, especially in the cold.

 

[GuillaumeG]

Or he may just have missed a gear... 11 iron is not that much...