Nick Graves

Doesn't state EP on it, although Redline claims it is!

mr-pitts

I've just put some of that in my Quaife gearbox.It is quieter now than it was Strange thing is it looks like blood when you put it in It is supposed to be good stuff,mind you for £40 an oil change 1.75 ltres it should be.

richmc

Doesn't the fact it's GL-5 mean that it's an EP oil?

just read through this-

http://www.widman.biz/uploads/Transaxle_oil.pdf

very interesting and informative, but heavy, may explain the problem the OP had and useful evidence if he needs to pursue a claim.

Nick Graves

It is - and it helps explain why Honda MTF also gives superb results in non-Honda gearboxes too!

The guy does not really mention the difference between helical & bevel FDs, so it's not clear what he means by 'differential'

Hence over here in Britland, 'EP' is still used. Including by Honda on their correct 'gear oil'.

To multiply (!) the confusion; the Legend uses ATF in the tranny (transverse engine) EP gear oil in the transfer box & the rear diff/clutch packs uses a special type of ATF, which is more specific than the either/or choice which can be used up front!

FWIW, the cheapo Comma oil in the S2000's diff is EP, since they do both versions.

Si2k

75W-90 with GL-5 should be fine in an S2000 diff.

Ara1

hi

As it happens just had my diff oil changed by Honda. Don't know what they put in but it says " GEAR OIL 80/90W" on the invoice. Is this ok? starting to worry now

Thanks

Ara

Nick Graves

I'd just use the CORRECT stuff, exactly like most Honda garages do not:



Best to check with them, but it's probably what they mean.

flanders

GEAR OIL 80/90W does not sound right, better ask.
The part number should be: 08294-P9901HE

tangoray

i would either use ^^^^^ this

or this >>>>



SAE90 GL5 for Limited Slip diffs....same OEM spec...worked out cheaper than the honda stuff too

Si2k

The S2000 diff doesnt need a LS oil but that EP90 is probably ok, might be a little think in the winter. I am very surprised that using a 75W-90 GL5 oil has caused diff problems.

I quote from colleagues:

"There is definitely a technical difference between LS and non-LS oils which is a specific friction modifier system.

There are also different types of Torsen design – the fluid developed for the Audi Torsen did require a specific additive system and friction to optimize noise and vibration control. Looking at the recommendation from Honda it appears they believe a standard GL-5 oil is sufficient ie without optimized friction characteristics. The EP 90 may be slightly higher in viscosity than an SAE 75W-90 which may also help here"