loserwill

This is the first time I've had the oil analyzed, as I bought the car 6 months ago. I know the car has been tracked and run hard so I'm focusing on preventative maintenance. The oil was taken when it was changed, so it was hot.

As for you who say they would trust Honda, I posit this: Would you use the same oil in your S if you were driving it in the winter in the Northeast or during summer in Death Valley?

Silver5656

considering ure in so cal, 30 is better than 20

starchland

i would see what the next one says before making any conclusions.

terahertz

tracking on 5w20 might be too thin of an oil. street use, yes, that little difference in viscocity might not matter, but on the track i know people who run 10w40 "preventatively" because of the temperatures alone.

i agree with the others. go back to 10w30 and see what happens

Stratocaster

If you don't want to listen to what we have to say, why did you post here in the first place?

1. Get a new mechanic
2. Change oil to what Honda spec'ed for the S2000. 10W30
3. While you are at it, change the diff fuild to SAE90
4. Change the trany to Honda MFT

You have high content of metal in your oil sample and you are running too thin of an oil. Since the metal they are finding is the same thing your motor is made out of, maybe, just maybe your thin oil is the cause.

Now if your mechcanic is buyiung you your next motor, then by all means, do what ever he says.

SpitfireS

Conventoinal (dino) 5W-20's are not known for their high HTHS values.
HTHS = High Temp High Shear
There was a thread in the Racing forum a while back about track oil temps reaching 265F.
https://www.s2ki.com/forums/index.ph...ic=705376&st=0

You don't, repeat DON'T! want conventional 5W-20 under those circumstances.
Period.

Stratocaster Posted on Aug 7 2009, 07:35 AM

And get it in writing, dated and signed.

iDomN8U

Also check your oil pressure, I wouldn't be surprised that when you're running hard on the track that it will get dangerously low with that viscosity.

More reason to run a thicker oil when you track

ZDan

Yes. 10W30 in both cases. 5W20 is not more appropriate in either case.

loserwill

Well, after hearing all of your stinging remarks about my mechanic I called him up to get the story. He told me he absolutely used 10W30 and that he has done several oil analysis on this oil that came back as 5W20. He was concerned that his oil supplier was scaming him so he sent in new oil and it came back as 10W30. I called Blackstone and they confirmed that oil can break down and appear as a different viscousity over time.

After all of that not a single one of you answered my question:
Has anyone ever had an experience of showing iron or aluminuim in their oil, and if so did any problems develop that I can look into?

iDomN8U

Then you're mechanic is using crappy oil, since the UOA i've seen posted came back as 10w30 even after 8+K and track time.

Don't get upset and don't be surprised if you don't get any feedback to your question, since most of us here follow what honda recommends for viscosity.