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Engine Specific Info and Questions => IDI Engine => Topic started by: Robb on August 06, 2010, 12:15:51 pm

Title: What grade gear oil
Post by: Robb on August 06, 2010, 12:15:51 pm
Just wondering what grade gearbox oil I should use when replacing the oil in my 1.6td GTD Gearbox?

Thank You
Title: Re: What grade gear oil
Post by: TITan on August 06, 2010, 12:35:13 pm
For the 020 it should be 75w/90.

All the info you will ever need for the 020 tranny:
http://www.brokevw.com (http://www.brokevw.com)

More specificly for now:
http://www.brokevw.com/020oil.html (http://www.brokevw.com/020oil.html)
Title: Re: What grade gear oil
Post by: VWCaddy on August 06, 2010, 03:09:44 pm
I use a GL-4 oil, typically Redline MTL in mine:
- http://www.4crawler.com/Diesel/ForSale/ShiftLinkage.shtml#FAQ20 (http://www.4crawler.com/Diesel/ForSale/ShiftLinkage.shtml#FAQ20)
Title: Re: What grade gear oil
Post by: smutts on August 06, 2010, 03:25:00 pm
For those in the UK, the Castrol fully synthetic stuff 75w85 GL4 is very good. Available from Halfrauds. ;D
DON'T USE GL5! Unless hearing the gentle fizz of dissolving brass is your thing! :-\
Title: Re: What grade gear oil
Post by: wolf_walker on August 06, 2010, 03:26:57 pm
The redline is really excellent, fixes that 2nd gear crunch they all seem to get with age a lot of times.
Title: Re: What grade gear oil
Post by: RadoTD on August 06, 2010, 10:30:23 pm
I've used AMSOIL Syncromesh (75W90 I think) in 3 trannies now (02A, 020 and a honda piece of something) and it has worked great for me. Not the cheapest stuff around but pretty reasonable for a good quality full synthetic
Title: Re: What grade gear oil
Post by: Robb on August 08, 2010, 11:33:26 pm
Thanks everyone, will order some this evening. Just checking it doesnt require anymore than a litre does it?

Cheers
Title: Re: What grade gear oil
Post by: Vincent Waldon on August 09, 2010, 02:40:46 am
Read the links supplied above.. yup, it's more than a litre.  ;-)
Title: Re: What grade gear oil
Post by: smutts on August 09, 2010, 05:20:38 am
Quote
yup, it's more than a litre.  ;-)

Exactly 2.0 litres from dry to full, ;D

Check what gearbox you have, VW took a few years to move the fill plug to the right height for the Mk2 Golf, get it wrong and kill the box. :P
Title: Re: What grade gear oil
Post by: BAM on August 09, 2010, 12:34:29 pm
Just wondering what grade gearbox oil I should use when replacing the oil in my 1.6td GTD Gearbox?

Thank You

020 transmission lube spec is 1.9L for Golf/Jetta 80w90 GL4.  2L fits nice I run 75w90 Castrol full synthetic because we run it in bulk here at the shop.  I found the full synthetic shifts smoother.
Title: Re: What grade gear oil
Post by: theman53 on August 09, 2010, 03:18:03 pm
75w90 is the spec on the earlier 020 though just in case someone was confused.
Title: Re: What grade gear oil
Post by: Robb on August 10, 2010, 11:03:34 am
Thanks very much for the links they are great, annoying can only find redline 75w90 in 950ml bottles, which would mean having to buy 3 and having a load spare at around £50 which is pretty expensive!

May take a look at the castrol stuff at halfrauds as I have a trade card so should be cheaper!

I have the dreaded 2nd gear crunching, what is the best grade oil to try and smooth the gearbox up? 75w90 or 75w85?

Im a sprayer and havnt dealt with transmission oil I must admit so thanks for the help
Title: Re: What grade gear oil
Post by: 84tdrabbit on August 10, 2010, 11:13:31 am
Thanks very much for the links they are great, annoying can only find redline 75w90 in 950ml bottles, which would mean having to buy 3 and having a load spare at around £50 which is pretty expensive!

May take a look at the castrol stuff at halfrauds as I have a trade card so should be cheaper!

I have the dreaded 2nd gear crunching, what is the best grade oil to try and smooth the gearbox up? 75w90 or 75w85?

Im a sprayer and havnt dealt with transmission oil I must admit so thanks for the help
The redline is really excellent, fixes that 2nd gear crunch they all seem to get with age a lot of times.

theres your second gear crunch fix.. the suspended moly lube additive also cant hurt. i used it in my trans when i changed the oil. made it feel like new.
Title: Re: What grade gear oil
Post by: Robb on August 10, 2010, 11:34:12 am
Yeah I did see the reply, however as I mentioned id have to buy 3 bottles of Redline as it only comes in 950ml bottles and it would end up costing a small fortune.

Is Redline the onyl oil that would fix this issue, or would Castrol also fix the issue as it is more readily available in the UK.

Thanks
Title: Re: What grade gear oil
Post by: 84tdrabbit on August 10, 2010, 11:50:03 am
is a shot glass full of oil really something worth worrying about? 2 us quarts is less than 2 litres.. the spec on thes trannies is 4.2 pints. or 2.1 qts. thats a little under 2 litres IIRC..

a litre is 1000ml... 950ml is pretty darn close. i wouldnt buy a whole spare jug to pour a shot glass full out of it.

ive heard that royal purple takes care of the crunch too..
Title: Re: What grade gear oil
Post by: rs899 on August 10, 2010, 12:10:54 pm
Well, it's really bad news if 5th gear runs without oil and 5th is the one that will suffer if you are even a bit low.  If you really want to cheap out (and gamble that you will never need to top off) better to add a dash of something.  Even motor oil will be better than air for 5th gear.
Title: Re: What grade gear oil
Post by: Robb on August 10, 2010, 03:07:01 pm
I would never gamble on not having 100ml of oil in the transmission personally.

Thats 5% less than recommend, Im not mechanic but always been lead to believe oil levels in transmission is crucial!
Title: Re: What grade gear oil
Post by: theman53 on August 10, 2010, 03:07:28 pm
This is what I did and ran it by the Master BROKEVW and he said that should work. Since mine is "new" I wanted to make sure it got what was recommended best. I asked brokevw what he was running and he wouldn't say. He didn't want to sway people one way or the other. I asked and ended up running one quart of syncromesh and one quart full synthetic 75w90 then the rest filled with 80w90. That way the syncromesh is thickened just a bit with the 80w but it isn't too thick. The syncromesh is noticably thinner than the 75w90 so that is why I used the .1qt of 80w90 as I figured it would end up just right. I think when done with this round after a few thousand miles I will go with just a full syth of high quality like amsoil or redline.
Title: Re: What grade gear oil
Post by: srgtlord on August 11, 2010, 06:35:45 am
From the stories I have read on vortex about second gear grind the best oil to use is not synthetic , but dyno 80w-90 gl4 oil. good luck finding it lol.
Title: Re: What grade gear oil
Post by: srgtlord on August 11, 2010, 06:41:25 am
here is a nice writeup on oils for anyone who does not want to purchase expensive synthetic oil. http://www.ratwell.com/technical/GearOil.html (http://www.ratwell.com/technical/GearOil.html)