which gearbox oil should i use?

[defibros]

I go royal purple!!!!!I had it on my skylne and Wrx before and it's awesome!!! Even the engine oil is great !!!just a bit pricey

[xxb4xx]

To phased..

Yes it was so much better.

First of all u never said to use NEO as engine oil, but as gearbox .
When you have paid thousands for a gearbox that will actually handle power you need the best you can get.

To be honest you all, including myself can use water as gearbox oil, these cars don't make power to need good gearboxes or oil.

For me, motul starting overheating in my box and turned to shit.
It became harder to change gears and the box was getting louder and louder.
This is the same for royal purple, another brand people buy cause everyone else is, i'd rather use cooking oil.

So to sum this up,

One day you are going to be a big boy, and own a car that makes more than 35kw at the wheels, when you do, all of what I'm saying to you will make sense.

P.s if you don't know what straight cut gears are google it..

[tony1234]

I have heard mixed opinions on the "Neo Synthetics" product line. Some mechanics are very much against Neo (Engine oil in particular) as they have "narrowed it down" to causing some serious engine problems, in some of their skylines/wrx's. Having said that... I know a couple of people that use it with no problems...



Firstly, How exactly is it "so much better" than motul/royal purple? Are you an e-mechanic that reads posts of people saying "OMG xxx oil is the best, because the company targets the high end market and they say its the best"?

Do you have any proof of this? Have you actually compared all the oils? If you have you must have fairly deep pockets and change much more often than recommended drain intervals...

I'm not saying that it necessarily isn't better, or you havn't tried it. However, a post like the one above isn't very helpful to the original poster when all you write is an inane opinion.

To be honest, If I was willing to spend the extra/go to the extra effort to purchase it. I would be using Amsoil. No questions. However, I enjoy my discount/5 minute drive to get Royal Purple

So what other MTF would you suggest apart from the Honda one?It seems to be pretty good.By the way what is your background?Are you mechanic or something else as your avatar says suspension/chassis guru.

[aaronng]

I go royal purple!!!!!I had it on my skylne and Wrx before and it's awesome!!! Even the engine oil is great !!!just a bit pricey

Royal Purple may be great for other gearboxes, but those are spec'd to use 75w90. Honda uses 75w80, which is a grade thinner when warm. Interestingly, I have compared both Royal Purple and Honda MTF from the bottle and the Royal Purple was like warm honey, while Honda MTF was like slightly thicker cooking oil. That is a big difference in viscosity eventhough this was at 20 C and the 80/90 viscosity is measured at 100 C.

[aaronng]

So what other MTF would you suggest apart from the Honda one?It seems to be pretty good.By the way what is your background?Are you mechanic or something else as your avatar says suspension/chassis guru.

I have tried Elf MTF 75w80 and have no problems on the street or on the track. I still have Elf in my gearbox now.

[aaronng]

fuc@ing excellent stuff.. 120 for 4 litres.. So much better than motul and royal purple, ps redline shockproof is ok too

Redline Shockproofis NOT ok. Looking for the shockproof thread with many Honda owners having smoother shifts at first and then gear wear after long term!

[tony1234]

I have tried Elf MTF 75w80 and have no problems on the street or on the track. I still have Elf in my gearbox now.

Would you rate it better than the Honda MTF and why?

[xxb4xx]

I have tried Elf MTF 75w80 and have no problems on the street or on the track. I still have Elf in my gearbox now.

Where did you find Elf???

it's like trying to find a leprachaun.

Would love to try out Elf.. I need to do my GB oil, i just hit 80k,

I was gonna settle for standard run of the mill Castrol MTF, but wouldn't mind hitting elf, as I bang the car around a bit

[aaronng]

Where did you find Elf???

it's like trying to find a leprachaun.

Would love to try out Elf.. I need to do my GB oil, i just hit 80k,

I was gonna settle for standard run of the mill Castrol MTF, but wouldn't mind hitting elf, as I bang the car around a bit

You'll have to order it in I believe. I got mine from Toda Australia when I had a part installed in my gearbox. They had a drum of the stuff.

[aaronng]

Would you rate it better than the Honda MTF and why?

I can't tell the difference, which is good. Shifts are all as smooth as Honda MTF 06. The deciding factor will be how long it lasts. I've had it in for almost 1 year now, and gone through 1 trackday.

[ig3o]

haha geo u cac , use motul bro .. just buy like 4 litres should be enough , and save for next time

go to shift and buy it

or if u want use water

lol its 40 bux a litre for motul at shift =O

[Phased]

So to sum this up,

One day you are going to be a big boy, and own a car that makes more than 35kw at the wheels, when you do, all of what I'm saying to you will make sense.

P.s if you don't know what straight cut gears are google it..

Ah, the typical emotional response. Although you haven't offered any real information to the OP, as the gear box's your talking about are completely differant to those of the Euro. You have made me laugh, which is good for something.

First of all. Big boy? Original.

You can see the the cars ive owned in my avatar, The wrx after I sold it got swapped with a prebuilt PPG straight cut box which I drove. Very whiny, and uneccesary for the street in my opinion. Although AWD's are well known for transmission failure, when driven hard. Gets the attention of pedestrians/cops.

You would also well know that all of them have at least triple that figure to the wheels... So again, well done... another supurb insult.

The worst part about your whole post, is that you didn't realise... I NEVER once said it wasn't better than royal purple/motul nor was a personally attacking you (excluding the mild e-mechanic comment, I love to joke ). I was criticizing your post. It wasn't helpful the OP, that was my only real point.

This is the same for royal purple, another brand people buy cause everyone else is, i'd rather use cooking oil.

A comment that isn't even worth addressing.

/end discussion

Royal Purple may be great for other gearboxes, but those are spec'd to use 75w90. Honda uses 75w80, which is a grade thinner when warm. Interestingly, I have compared both Royal Purple and Honda MTF from the bottle and the Royal Purple was like warm honey, while Honda MTF was like slightly thicker cooking oil. That is a big difference in viscosity eventhough this was at 20 C and the 80/90 viscosity is measured at 100 C.

aaronng, you better be joking, lol. I have been told by two differant honda service centers that the 6MT Euro should use 75w90 (apparently the viscosity of Honda MTF 06) I thought it was odd as the integra was spec'd to use MTF 06 however it was 75w80. Interesting. How did you come accross the viscosity required? It doesn't mention in my service book or on the bottle. Which is why I double checked with the service centre.

Redline Shockproofis NOT ok. Looking for the shockproof thread with many Honda owners having smoother shifts at first and then gear wear after long term!

I can second that. In my WRX it did NOT respond well to shockproof (original owner was using it). Nothing that would cause collateral damage of course. However, it caused notchy shifting.

So what other MTF would you suggest apart from the Honda one?It seems to be pretty good.By the way what is your background?Are you mechanic or something else as your avatar says suspension/chassis guru.

I have spent a large chunk of my life since I was about 10, at my uncles workshop (BM Specialist) either working or annoying him, until he sold it a few years ago. Ever since then, my spare time is either modifying/engineering chassis/suspension modifications or servicing cars, most of them friends lol. I had the ambition of becoming a Specialist Mechanic, however I got into a couple of University Courses and decided to take the more "secure/mature" option in the long run.

I was suggesting MTF, lol. Unless you have money to spend, I wouldn't recommend anything else. I would however, recommend much shorter change intervals. Honda MTF is more than sufficient even if you drive hard as long as its changed every 15-20,000kms. Dr. Spoon (Tsuchiya) recommended changing the transmission fluid every engine oil change

In the higher end of the scale, for a euro. I would recommend sourcing some Amsoil if you really want to go all out. The major benefit of synthetic fluids (excluding marginally enhanced lubrication qualities) is extended life. Synthetic fluids are more resistant to Oxidization and breakdown. If you compare Honda MTF to Amsoil when they are both new, the differance will but MUCH less than when they were both 10,000kms old.

I would also take into consideration any oils that aaronng recommends. He is known to be somewhat of an oil/fuel guru