JackS

I think the 3 most mentioned diff fluids on the forum are Amsoil, LE and Mobil-1. Choose one of these. Stay with the Royal Purple if your happy with it. Never heard of Generoc which may be good too but I'd feel a little better with one of the more common name brand products.

zeroptzero

SAE 110 in today's fluid classification occupies the thicker end of the original SAE90 spectrum when the S2000 was first engineered. They reclassified fluids since the S2000 was first engineered, and 110 was introduced into the classification as a new range. When that happened SAE90 was limited to the thinner end of the previous SAE90 range, with 110 occupying the thicker end of the range. I think today's 110 better matches the old SAE90 spec. That is not to say that there is anything wrong with today's 90 weights. They tend to be on the thinner side of the old spec., though they may work perfectly fine, particularly when choosing a high end synthetic fluid.

FISH22

I used LE 1605 and 607 in my last S2000 for 50k miles. Never had any issues.

05ap2ftw

Generic* i gues ikk just go with mobil 1. Seems to be the favorite

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xviper

That dealer doesn't adhere to Honda's own recommendations. Canadian dealers got this memo years ago. USA dealer got a similar memo. If something happens to their customer's S2000 because they used a non-authorized fluid, they may be up for tag for a new diff.

takeshi

So why do you think this thread will produce different results? You'll be fine with any of a number of brands of fluids that have been endlessly discussed in prior threads.

It's not a brand. It's a typo for generic.

Leviisbigred

redline shockproof heavy a+

DangerZone9K

Thanks for the replies! I'm going to order the Amsoil 75w-110 diff fluid because I daily my car and it see's winter.

xviper

You might want to send in a sample of your used RL "shockproof" in for analysis. I experimented with this over 10 years ago. The analysis came back indicating that the fluid was pretty much done after only 2500 miles. It got an "F" by analysis. RL "Shockproof" is for a specific purpose - for a lot of short runs under high stress and then changed early and very frequently, like at the dragstrip. Daily driving and regular recommended change intervals may not work with this fluid.

05ap2ftw

Swapped my trans fluid today with honda mtf and dif fluid with amsoil. Car feels good. I did however notice my trans has been taken apart before, kinda worries me since i got inly 35 k miles on her.

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