Series 3 gear oil

Stormintrooper · Aug 16, 2019

God morning all!

so plan on changing some oils around the beast.

Done some research and come up with this
https://www.eurocarparts.com/ecp/p/...nual-transmission-fluids/?522776051&0&cc5_868

Iv read that the correct one is GL-4 and this is what iv come up with, can anyone confirm if its ok?

Bern · Aug 16, 2019

I recently changed mine, and used this:

https://www.ebay.co.uk/itm/EP90-Hyp...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

What you have listed there is probably OK for an LT77, but could be a bit modern and thin for a series gearbox. Though I am in no way an expert when it comes to gear oils, I just put in what it says in the Haynes manual!

divie · Aug 16, 2019

Any GL4 90 grade oil is OK for a series box. Good for swivels/steering box and steering relay to. Also OK for the front and rear diffs.
Avoid the GL5 grade as it is supposed to harm any bronze bushes in the transmission.

rob1miles · Aug 16, 2019

Buy a gallon of GL4 90 and you will get through it. Get one of the pump things too, they come with a bottle but I've just found that the pump fits the top of the 5l container, wish I'd noticed that before I poured a litre if oil into it! Makes topping up so much eaiser that I'm now inlcined to do it a lot more often. I paid £15 at an auto jumble
https://www.ebay.co.uk/itm/Mini-Pum...=173980207832f4d4d634ad5e4a218ff780df99af044c

steve2286w · Aug 16, 2019

I got this lasts for several years / changes

dag019 · Aug 19, 2019

steve2286w said:
I got this lasts for several years / changes

View attachment 186953

You either do not drive it enough or it does not leak enough for that to last you a several years

steve2286w · Aug 19, 2019

Ha , correct only about 1000/yr normally but. Been working on the leaks recently too , I’m due for another

Stormintrooper · Sep 3, 2019

ha, thankyou all, i ended up getting the euro car parts gl40, bought a fluid transfer syringe thingy, not the fastest but the cleanest/most drip free way iv ever done it

steve2286w · Sep 3, 2019

I got one of those syringe you thingeys cost about £7 , dead handy for pumping out of one box into the other

rob1miles · Sep 3, 2019

I'm finding a very clear "more use = less leaks" rule. Not clear why, perhaps its keeping all the seals moist. I too use a top up thingy, makee the job a lot easier.

Turboman · Sep 3, 2019

rob1miles said:
I'm finding a very clear "more use = less leaks" rule. Not clear why, perhaps its keeping all the seals moist. I too use a top up thingy, makee the job a lot easier.

Keeps the oil going round instead of sitting in the bottom of the box, warms up the seals so they are more flexible, and prevents the feather edges of the seals sticking on the shafts, and getting torn on restart.

Machinery likes to be used. In 40 years of working on it, I have seen many more problems caused by underuse than by overuse.

Henry_b · Sep 3, 2019

Gl4 for the series as GL5 can damage bronze components.

Series 3 gear oil

Stormintrooper

Active Member

Bern

Member

divie

Well-Known Member

rob1miles

Well-Known Member

steve2286w

Well-Known Member

dag019

Well-Known Member

steve2286w

Well-Known Member

Stormintrooper

Active Member

steve2286w

Well-Known Member

rob1miles

Well-Known Member

Turboman

Mab An Gov

Henry_b

Think outside, no box required.

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