Diff. and Tranny fluids
#1
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Diff. and Tranny fluids
I am about to change my differential and tranny fluids to MOBIL 1 75W90 synthetic gear lubricant. I have read the tech bulletins and the owners manual but for my own peace of mind, can you verify that this GL5 quality gear lube is used in BOTH the MANUAL transmission and the differential. Again,,,,the same fluid in both the tranny and the differential.
Thanks
Thanks
#2
Zoom-Freakin'-Zoom
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Originally Posted by Johnboy
I am about to change my differential and tranny fluids to MOBIL 1 75W90 synthetic gear lubricant. I have read the tech bulletins and the owners manual but for my own peace of mind, can you verify that this GL5 quality gear lube is used in BOTH the MANUAL transmission and the differential. Again,,,,the same fluid in both the tranny and the differential.
Thanks
Thanks
diff gl 5.
i am running gl 5 royal purple in both.... the tranny loves it..
beers
#4
the giant tastetickles
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I use the Mobil 1 GL5 above as well, the tranny certainly loves it but now I can no longer shift into 1st gear until the car fully stops but I think this is entirely normal since my friend with a lower mileage properly cared for 8 still on the factory fluid is not able to do so too.
#6
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Originally Posted by ndtechie09
i've been told to get the redline mt-90 for gear oil. can anyone comment on this over royal purple? dont know about the difff fluid
i am sure the diff between rp redline and mobile 1 are not enought to talk about.
beers
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I went to the Royal Purple in my tranny about two weeks ago. Initially, I didn't notice any difference. But after about a week, I can say that shifts are noticeably smoother, with little effort. Even 5th to 6th !
Royal Purple lubricants are top notch and highly recommended.
Royal Purple lubricants are top notch and highly recommended.
#10
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Gear lube odor?? Royal Purple
I changed my tranny and diff oil to Royal Purple 75/90 a couple of weeks ago.
The smell of gear oil is getting stronger in my car.
I can't figure out where it is coming from. Plugs are tight. No spillage on tranny or diff. Everything is working fine.
Thinking I need to change the oil again.
Any experience with this out there?
The smell of gear oil is getting stronger in my car.
I can't figure out where it is coming from. Plugs are tight. No spillage on tranny or diff. Everything is working fine.
Thinking I need to change the oil again.
Any experience with this out there?
#11
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Redline FTW
#16
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Its the same Transmission for all years.
and I think recently they changed the spec on what 07 or something to GL4 only. not 100% sure on that but I think so.
Im using MT-90 atm ... people said shift quality suck *** with MT-90 but it feels fine to me ... The tranny feels *tight* now, if thats what people call *shitty quality*
and I think recently they changed the spec on what 07 or something to GL4 only. not 100% sure on that but I think so.
Im using MT-90 atm ... people said shift quality suck *** with MT-90 but it feels fine to me ... The tranny feels *tight* now, if thats what people call *shitty quality*
#17
Lubricious
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You may be right. I've seen arguments both ways, and not just specific to the Aisin unit. Haven't seen anything that I would call conclusive in this debate so I err on the side of caution.
Since Redline MT-90 is the specified weight, Gl-4, and widely respected MT lube, it satisfies both Mazda's requirements and any doubts.
My observation after switching out the factory lube at about 12,000 miles was that the MT90 was somewhat more "sluggish", mostly when cold. But you quickly learn to slow the shift just a little bit, and then it feels very good.
Since the gear-lube selection at most parts stores is often sparse indeed, it's just as easy for me to purchase Redline via web as anything else. It works well for me. Redline gear lube was also a favorite of Miata owners for many years so there's a good bit of history with its use in this Aisin transmission.
Last edited by Nubo; 04-21-2008 at 01:03 PM.
#18
Its the same Transmission for all years.
and I think recently they changed the spec on what 07 or something to GL4 only. not 100% sure on that but I think so.
Im using MT-90 atm ... people said shift quality suck *** with MT-90 but it feels fine to me ... The tranny feels *tight* now, if thats what people call *shitty quality*
and I think recently they changed the spec on what 07 or something to GL4 only. not 100% sure on that but I think so.
Im using MT-90 atm ... people said shift quality suck *** with MT-90 but it feels fine to me ... The tranny feels *tight* now, if thats what people call *shitty quality*
Thinking about swapping out to RP, any other suggestions?
#19
Out of NYC
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I had RP for about 35K miles. well the tranny noise is getting worst. so I swap to MT-90. Shifting quality actually feels better, maybe I like the *tighter* feel. No grinding, less noise. so its good.
The longest user here I think is Expo, he use MT-90 and with over 100K his tranny still works fine.
Not saying RP is bad, but I think no one ever got over 100K with RP in their tranny.
#20
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I had issues with RP, so far so good with the new transmission and Redline.
#21
StixandStones
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Well I found another thread that talked about gear oil odor.
I think that's what I searched.
Seems folks have had the same odor problem regardless of what they were using for lube.
Now, I don't know if I'm just getting nervous about the RP after reading your posts here or not. I might be getting more whine than before but the shifting is still great. I have trouble believing it has gone into reverse it is so easy.
The only shift problem I have is a short grind into 3rd at ~8500 rpm.
Might be I'm just a little too quick on the clutch work.
I suppose I should be covered by warranty since I used a lube grade that was called for in the manual (I have a 2004).
And....please excuse my ignorance. What do "FTW" and "fwiw" mean?
I don't go on many boards and I'm probably older than most you guys.
I think that's what I searched.
Seems folks have had the same odor problem regardless of what they were using for lube.
Now, I don't know if I'm just getting nervous about the RP after reading your posts here or not. I might be getting more whine than before but the shifting is still great. I have trouble believing it has gone into reverse it is so easy.
The only shift problem I have is a short grind into 3rd at ~8500 rpm.
Might be I'm just a little too quick on the clutch work.
I suppose I should be covered by warranty since I used a lube grade that was called for in the manual (I have a 2004).
And....please excuse my ignorance. What do "FTW" and "fwiw" mean?
I don't go on many boards and I'm probably older than most you guys.
#22
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FTW = For the Win !
FWIW = For what it's worth.
FWIW = For what it's worth.
#23
Lubricious
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FWIW, I did have to modify my shifting habits a bit after switching to Redline. Have to be just slightly slower. It's almost imperceptible but just that split-second of hesitation before sending it home lets the synchros do their magic.
#24
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I changed my tranny and diff oil to Royal Purple 75/90 a couple of weeks ago.
The smell of gear oil is getting stronger in my car.
I can't figure out where it is coming from. Plugs are tight. No spillage on tranny or diff. Everything is working fine.
Thinking I need to change the oil again.
Any experience with this out there?
The smell of gear oil is getting stronger in my car.
I can't figure out where it is coming from. Plugs are tight. No spillage on tranny or diff. Everything is working fine.
Thinking I need to change the oil again.
Any experience with this out there?