Gearbox and Diff Oil for SE

Engines, Transmissions & Final Drive questions and answers

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ako
Learner Driver
Posts: 7
Joined: Mon Jul 20, 2009 7:20 am
Vehicle: NB SE
Location: NW Sydney

Gearbox and Diff Oil for SE

Postby ako » Thu Feb 03, 2011 10:06 am

Hi guys,

Just bought myself an SE [stock] and I'm looking to change the gearbox and Diff oil. I've seen Redline MT90 mentioned a few times for the gearbox but nothing mentioned for the diff. What oil's would you recommend?
1989 NA - sold!
2004 SE - sold!
2010 NC roadster

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hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Gearbox and Diff Oil for SE

Postby hks_kansei » Thu Feb 03, 2011 10:29 am

Read the manual.

the 6 speed box uses different oils to the 5 speed, and usually LSD diffs use different to an open diff.


so yeah, read the manual, it should have a section on oil grades needed, if the redline MT90 meets those grades, go for it.

also make sure to check what oil the diff uses. I'm not sure if it needs a special kind.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

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Hellmun
Racing Driver
Posts: 979
Joined: Sat Feb 10, 2007 1:15 pm
Vehicle: NB8B - Turbo
Location: Wollongong,NSW

Re: Gearbox and Diff Oil for SE

Postby Hellmun » Thu Feb 03, 2011 3:23 pm

An open or the factory torsion are not picky at all with oil. It's only aftermarket clutch pack LSDs which need oil with an additive. I'd just use SIN 75 in the diff and lightweight shockproof in the gearbox. It was great in the stock NB box but probaly not as necessary in the SE. It's a much better 6 speed gearbox.

ako
Learner Driver
Posts: 7
Joined: Mon Jul 20, 2009 7:20 am
Vehicle: NB SE
Location: NW Sydney

Re: Gearbox and Diff Oil for SE

Postby ako » Mon Feb 07, 2011 7:05 am

Thanks guys, I'll give the lightweight shockproof a go in the gearbox first.
1989 NA - sold!
2004 SE - sold!
2010 NC roadster


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