Road Rage

I suggest you search on topic - there are others with a lot of real-world experience. I have had great sucess over many years with Red Line and Amsoil products, but I believe that for MY04 at least, using the Honda MTF is a sfae bet until we see some anecdotal posts on use of MT90 in thre tranny. I posted on topic on this last week, about pemature wear of carbon synchro blockers on the 2003 SVT Coras when syoils were used int he transmission.

You are looking for a simple answer to a more complex question.

TubeDriver

I just recently switched to Amsoil 80w-90 in my diff. I also replaced MTF fluid with OEM Honda MTF fluid. Interestingly enough the MTF fluid that was drained looked perfect (golden, no particles) but sfiting improved noticably after the change. I have been pretty OCD about diff/tranny fluids) both were changed with OEM fluid at 3000 miles and now again at 9000 miles. Will see how the amsoil does after 7000 miles.

svatne

My first transmission oil change was at 6000 miles, and the stuff that came out didn't look that bad. I replaced it with Honda MTF and also enjoyed smoother shifting. Must not be too bad even if it isn't synthetic.

Road Rage

I too will likely use MTF - as I have posted before, trannies are very sensitive to lubricant, and I have seen many tiimes where Red Line or Mobil 1 resulted in poor synchro action.

I have never had an engine or diff complain about a top quality synoil however.

yomike

Back to the original post on 10w30, my choice would be 1st.Redline or 2n Amzoil, and change the oil & filter every 6 months. I'v had my S2000 since July and have a total of 1520 miles. Unless somene changes my mind.

spider

Now this reminds me of the myth about the break-in oil that shipped with the car from the factory. Many claim this oil should be left in the car for at least 3 to 4, or even 5 thousand miles. RR, care to comment on this?

Thanks.

home13oy75

I have a friend that is on hte NSX boards and it seemd that a lot of NSX owners changed from mobil 1 syn to castrol GTX. There was someone that had picture of a motor pulled apart and showed that conventional oil ... if changed at 3k or 3 months looked the same as mobil1 used motors. These are also motors that see some track times.

It seems that they are staying away from Mobil 1 because it causes some oil leaks at the seals over time ... seems to occur at the cam seal /distributor. Although I have never experienced and problems w/ my other cars ... has anyone every heard or experienced this?

Road Rage

[QUOTE]Originally posted by spider
Now this reminds me of the myth about the break-in oil that shipped with the car from the factory.

cdelena

There is very good indication that these engines are shipped with a moly additive. Here is a quote from a Honda Europe repair bulletin that required the oil to be drained:

'Note 1 : During the assembly in the factory, new engines are filled with engine oil plus an additive called molybdenum. This additive facilitates the running in of the engine and its components. If the engine being repaired has covered less than 6,000 miles, add a can of molybdenum additive.
Adding molybdenum to an engine with more than 6,000 miles has no positive effect and therefore is not needed.'

RazorV3

where can you get the molybdenum additive?