Gearbox oil?

Submitted: Friday, Mar 31, 2006 at 15:12
ThreadID: 32384 Views:1584 Replies:7 FollowUps:3
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Greetings

It appears that our warm weather is over and I've noticed that with the cooler mornings, it is difficult to get the gearbox into 2nd gear. This was occuring last winter as well but went away during the summer months. I've got an 03 Patrol 4.2 td. When I bought the vehicle early last year, I had Nissan replace all the fluids. My thoughts are that the gearbox oil may not be the right grade or there is abetter grade to use. Has anyone experienced this problem and will a variation of oil grade fix it?

I've done a quick search and I didn't see anything specific.

Bart
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Reply By: ro-dah-o (WA) - Friday, Mar 31, 2006 at 15:35

Friday, Mar 31, 2006 at 15:35
Yeah, have had the same and came down to putting a slightly thinner oil in the box. Worked a treat from then on in.

check your local gear box specialist, they will be able to tell you what you can put in.
AnswerID: 164091

Reply By: Member - Paul P (Bris) - Friday, Mar 31, 2006 at 16:35

Friday, Mar 31, 2006 at 16:35
Bart

My suggestion is to use a full synthetic oil. Use factory recommended viscosity. Should fix the problem and improve the shifting no end.

Regards

Paul
AnswerID: 164108

Reply By: Wayne (NSW) - Friday, Mar 31, 2006 at 17:07

Friday, Mar 31, 2006 at 17:07
Bart,

I would have to agree with Paul.

I had a similar problem with the 80Series and the synthetic oil fix the problem.

The other way is to do what I am doing with the Troopie and that is to go north west this winter . Saves changing the gearbox oil.

Wayne
AnswerID: 164115

Follow Up By: Bartz4b - Friday, Mar 31, 2006 at 17:17

Friday, Mar 31, 2006 at 17:17
Wayne

That's exactly what we're doing this year but unfortunately we have to come back!

Bart
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Reply By: Member - Ed. C.- Friday, Mar 31, 2006 at 17:20

Friday, Mar 31, 2006 at 17:20
G'day Bart,
I was having similar problems 'till I woke up to what was the cause... I was using a
GL-5 oil.....

The recommended oil for that g'box is 75w-90 API GL-4....

I'm now using F u c h 's Titan Gear7590 (claimed to be semi-synthetic),
which covers GL-4 & GL-5, and I now have NO 'cold-shift baulk' problems, ever....

Whatever you use, make sure it meets the GL-4 specification....

Regards, Ed. C.
Confucius say.....
"He who lie underneath automobile with tool in hand,
....Not necessarily mechanic!!"

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AnswerID: 164117

Follow Up By: Bartz4b - Friday, Mar 31, 2006 at 17:51

Friday, Mar 31, 2006 at 17:51
Thanks Ed. C.

I wonder what Nissan use?
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Follow Up By: Member - Ed. C.- Friday, Mar 31, 2006 at 18:04

Friday, Mar 31, 2006 at 18:04
Dunno... probably whatever they can get at the cheapest bulk price;-))

My local dealership was carrying Castrol oils (in the spare parts dept.) at one stage, but lately, when I've been in there buying spare parts, I've noticed that they have
F u c h s oils on the shelf, so maybe they reached the same conclusion I did:-))
Confucius say.....
"He who lie underneath automobile with tool in hand,
....Not necessarily mechanic!!"

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Reply By: rash - Friday, Mar 31, 2006 at 19:24

Friday, Mar 31, 2006 at 19:24
Mobil fully synthetic gear oil.........put it in gearbox,transfer case and diffs....will outlast the vehicle

Regards
Rash

I also use delvac mobil 1 engine oil fully synthetic .........change oil when oil test indicates
AnswerID: 164134

Reply By: Member - Phil G (SA) - Friday, Mar 31, 2006 at 20:44

Friday, Mar 31, 2006 at 20:44
Don't know about the Nissans, but the LandCruisers change well with
Castrol VMX-M 75/85 and Valvoline Duragear 75/85.

Theres a couple of others as well, but you don't need to go to a full synthetic gear oil.
AnswerID: 164158

Reply By: warthog - Saturday, Apr 01, 2006 at 09:42

Saturday, Apr 01, 2006 at 09:42
I had the same problem with our GU and was recommended to try syntrax. This is a GL5 oil though its additives are not harmful to your syncro rings. It has proved to be much better than the mineral oils I have tried. I got some from a local truck repair work shop as I think it doesn't come in less than 20 ltrs.
AnswerID: 164222

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