Gearbox, Gearbox turret and Differential oil change.

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chris71
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Gearbox, Gearbox turret and Differential oil change. Apr 25, 2017 19:29:48 GMT lowender likes this

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Post by chris71 on Apr 25, 2017 19:29:48 GMT

Good evening guys.

When I'd bought the Autolink gear shifter rubber boot kit and it said that I should replace the turret oil at the same time. So after some Google time I came across this guide on the pistonhead forum.

www.miata.net/garage/trans/everything.html

So I thought it would be good idea to replace all oils when I'm getting the car ready for the road

My question is what brands and grades that you would recommend for refreshing the oil on the Turret, Gearbox and the diff.

My car is never going to be a track day devil, just want a well oiled B road blaster !

Thanks in advance

Last Edit: Apr 25, 2017 19:44:54 GMT by chris71

atlex
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Gearbox, Gearbox turret and Differential oil change. Apr 25, 2017 21:27:46 GMT minty and chris71 like this

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Post by atlex on Apr 25, 2017 21:27:46 GMT

75W90 GL4 for the gearbox (and turret), 75W90 GL5 for the diff. They're different oils for slightly different jobs.

Don't stress about the brands as much as the grade and it being fully synth.

I've used Redline recently... Redline "MT90" is the GL4 - Redline "Gear Oil" is the GL5.

Brands.. Redline, Mobil, Motul, Millers, Castrol, Titan Fuchs, Royal Purple are all great and producing oils in this greade

Opie Oils if you want delivery or just wander down to hellfrauds, who probably pimp the Mobil and Castrol options.

There's a lovely guide here for the turret job (I've done it a few times)

Get an old hand soap dispenser, it helps a ton on the turret bit.

Last Edit: Apr 25, 2017 21:30:52 GMT by atlex

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minty Won't Shut Up Posts: 983	Gearbox, Gearbox turret and Differential oil change. Apr 26, 2017 6:26:40 GMT tgbshelby likes this Quote Select Post Deselect Post Link to Post Back to Top Post by minty on Apr 26, 2017 6:26:40 GMT Good timing thread - I need to do this soon, my rubber boots are so bad I can see down to my driveway from the drivers seat!

nibnob21 New Here Posts: 40	Gearbox, Gearbox turret and Differential oil change. Apr 26, 2017 16:29:30 GMT via Tapatalk Quote Select Post Deselect Post Link to Post Back to Top Post by nibnob21 on Apr 26, 2017 16:29:30 GMT 75w-90 GL-4 Castrol Syntrans Multivehicle for the gearbox. 75w-90 GL-5 Fuchs Titon Sintopoid for the diff.

martiny
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Gearbox, Gearbox turret and Differential oil change. Apr 26, 2017 16:47:31 GMT chris71 likes this

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Post by martiny on Apr 26, 2017 16:47:31 GMT

There's a bit of controversy about GL-4 versus GL-5 for the gearbox. As I understand it, early formulations of GL-5 damaged brass synchro rings, but (so I'm told) you would be very unlucky to find such a formulation nowadays. I'm pretty sure Mazda say to use GL-5 in the owner's manual.

Anyway I often used GL-5 for both gearbox and diff of my old Mk.1 and the gearbox was one of the few original parts of the car still going strong after 450,000km. I mostly used Comma SX75w-90 because it was cheap and easy. Like me.

chris71
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Posts: 261

Gearbox, Gearbox turret and Differential oil change. Apr 28, 2017 21:41:25 GMT

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Post by chris71 on Apr 28, 2017 21:41:25 GMT

Thanks for all the info and advice.I've now ordered the following

www.ebay.co.uk/itm/371736902170?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

www.ebay.co.uk/itm/191891401991?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

www.ebay.co.uk/itm/221277602775?_trksid=p2057872.m2749.l2649&var=520169568431&ssPageName=STRK%3AMEBIDX%3AIT
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Last Edit: Apr 29, 2017 6:31:19 GMT by chris71

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Gearbox, Gearbox turret and Differential oil change.

Post by chris71 on Apr 25, 2017 19:29:48 GMT

Post by atlex on Apr 25, 2017 21:27:46 GMT

Post by minty on Apr 26, 2017 6:26:40 GMT

Post by nibnob21 on Apr 26, 2017 16:29:30 GMT

Post by martiny on Apr 26, 2017 16:47:31 GMT

Post by chris71 on Apr 28, 2017 21:41:25 GMT

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