ATF = Automatic Transmission Fluid. You certainly DO NOT want to run this in your diff.

 

My point?
Well...
What did your posted answer from Torsen add to the discussion?
So you have read post #32 (and yes, that was my post) and you don't see any similarity with the Torsen answer?

Lets put them all here.
My post #32:
The Torsen answer:
Do I really need to explain?

 

My personal opinion is for real world use it does not make much of a difference in a standard S2000 diff. The diff is happy using mineral diff oil or synthetic (many synthetics are modified mineral anyway) and as a driver you would be hard pushed to notice a difference. It can be argued that a synthetic will warm up quicker as they are usually a multigrade over a mono grade such as 75w-90 vs sae90 and in turn could be argued for better mpg. Also a synthetic should last longer as they resist shearing down and are better at coping with heat than a mineral, part of the reason they are used in longlife applications such as BMW.

Generally the rule of thumb I use is if there is a synthetic suitable for the intended application then it will be better than a mineral, that is why they were invented in the first place.

Cheers,

Guy

 

Yes explain. Whats your point? You are mentioning ATF, they didnt tell me that. So again whats your point?

 

okay. I assume sae 90 from the manual was a mineral oil back in 2000. This means all change intervals Honda setup are based on a mineral diff oil. So now lets say we use a synthetic and everybody says it lasts longer. But still most what I hear here is that people change their diff oil at the interval or way before that. So that doesnt make sense to me. Do you understand me?

So how much longer would the synthetic oil last? compared to a mineral.

I see the point to spent more money if you can keep a longer interval. If synth is really lasting longer in a good condition, than it should extend the original interval rate.

but by how much? I dont remember the recommended diff interval in kms or years, but what is the opinion of the readers here about kms/years for a synth oil change?

thanks

 

Ok, I've been trying not to take sides, but now we're just getting silly.

His point, he said virtually the same thing Torsen did. His side by side of his post and the excerpt from Torsen was very compelling. If you can't see that, you're fooling yourself.

Torsen didn't mention every gear lube in the universe. But they implied as much saying their limited slip doesn't much care what fluid you use.

 

20000kms longer than the mineral diff oil recommended change interval, if I had to guess.

 

Still no answer from Motul.

 

i think this thread its getting a little blown out of proportion imo, just run whatever you feel will work best in your car and be done with it. there are so many choices out there and you should have no problems

 

Hi, if used in moderate performance vehicles like the S2000 and the oil gets regularly hot through use the difference can be that a synthetic may do 3 years/ 60k whereas a mineral would be getting quite oxidised and need replacing about 2 years +.

Cheers,

Guy