Jump to content
Sign in to follow this  
IAN G

gear box oil

Recommended Posts

next job on my list is to change the gear box oil , any recommendations on what oil to go for ? 

Share this post


Link to post
Share on other sites

Just doing this myself.  I went down the oem route. I also bought a magnetic drain plug.   I'd at least choose a GL rating  appropriate to your application most modern cars use Gl4 because the additives and viscosity are purpose built for synchro-mesh  gears.  I read a lot of posts where people had good results using other ratings (gl5 rated fuchs syn5 for example) or even 50-50 mixes of 4 and 5 :o but after a lot of reading i went with oem. Using oem and doing 'regular' (3yr) changes is the way to go IMO.

Share this post


Link to post
Share on other sites
5 hours ago, MrWill said:

Just doing this myself.  I went down the oem route. I also bought a magnetic drain plug.   I'd at least choose a GL rating  appropriate to your application most modern cars use Gl4 because the additives and viscosity are purpose built for synchro-mesh  gears.  I read a lot of posts where people had good results using other ratings (gl5 rated fuchs syn5 for example) or even 50-50 mixes of 4 and 5 :o but after a lot of reading i went with oem. Using oem and doing 'regular' (3yr) changes is the way to go IMO.

A word of caution with the magnetic drain plugs, be careful you don't overtighten it. The second time I used one I felt it starting to yield as I attempted to tighten it so went back to the standard plug. Personally, I feel that the installation of the magnet leaves insufficient material within the plug itself to be properly torque tightened a number of times. Maybe they should be treated as a single use item. This is just my opinion, don't know what others have experienced?

Share this post


Link to post
Share on other sites

 Thanks for the advice PhilS1 I'll make sure I'm careful when tightening. Gone for a Gold Plug so should be okay on the quality side. And don't mind renewing every 3 years for the gearbox.  Got an elise parts One on the sump and that's been fine for two oil changes so far but I'm always gentle when re-fitting.

Share this post


Link to post
Share on other sites
2 hours ago, MrWill said:

 Thanks for the advice PhilS1 I'll make sure I'm careful when tightening. Gone for a Gold Plug so should be okay on the quality side. And don't mind renewing every 3 years for the gearbox.  Got an elise parts One on the sump and that's been fine for two oil changes so far but I'm always gentle when re-fitting.

Yeah sorry MrWill, my previous experience was with a magnetic oil sump plug rather than the gearbox one, maybe they're a bit more substantial. :)

Share this post


Link to post
Share on other sites
On 17/05/2018 at 16:47, Phil S1 said:

Yeah sorry MrWill, my previous experience was with a magnetic oil sump plug rather than the gearbox one, maybe they're a bit more substantial. :)

Quite the contrary PhilS1: the plugs are identical so the I expect your advice to be just as sage! Many thanks! :)

Share this post


Link to post
Share on other sites

Drained the gearbox last night Ian and it came out as thick dirty sludge with what looked like a few slightly congealed lumps :o 

more than justifies the oil change

 

Share this post


Link to post
Share on other sites
10 hours ago, MrWill said:

Drained the gearbox last night Ian and it came out as thick dirty sludge with what looked like a few slightly congealed lumps :o 

more than justifies the oil change

 

not good ! might be worth filling with a cheap gear oil running it for a few hundred miles then changing to some good stuff

mines only done 3 k miles so dont expect it should be too bad 

Share this post


Link to post
Share on other sites
2 hours ago, IAN G said:

not good ! might be worth filling with a cheap gear oil running it for a few hundred miles then changing to some good stuff

mines only done 3 k miles so dont expect it should be too bad 

I think you're right and now you've said it i can feel the OCD setting in so I'm going to do exactly that. 

I'm on 27k and 17 years old so wasn't expecting holy water but i didn't think it would be slurry. 

The OEM mg rover stuff is the cheapest so it'll be some good stuff followed by some more good stuff :ike:

Share this post


Link to post
Share on other sites

I would be interested to know what is the weapon of choice for pumping the oil back into the transmission? Having read the thread has me thinking mine is overdue.

Share this post


Link to post
Share on other sites

Not sure about your yota but for the rover s2 There 's no special requirements in the workshop manual. You need a funnel, some flexible tubing and a plentiful supply of gravity. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. Terms of Use