Can anyone tell how to change the diff oil in my GU and what weight oil to use ? I will be using Penrite. Any help appreciated.
Printable View
Can anyone tell how to change the diff oil in my GU and what weight oil to use ? I will be using Penrite. Any help appreciated.
Will need to know which one. Front and Back use different oils due to the Limited Slip Rear Diff.
There is my list of oil weights and amounts: Mine is a 3L 2005. some things may vary slightly depending on which model you have.
Oil - Penrite HPR 15w-50
Front Diff (5.4L)- 90w hypoid
Rear Diff (2.1-3L)- Penrite Limslip Hypoid 85w140
Gear Box (3.9L)- 75w85 Gear Oil
Transfer Case (2.2L)- 80w90 Gear Oil
Power Steering (1L)- Dexron II
Glow Plugs x4 - GPN-900
Welcome others for any other info you may have here.
ScottyB
Forgot the best bit of advice i have ever been given. remove the filler plug first. Just in case you can't get it out. oil doesn't flow uphill.
there are some pictures around the forum from people who use Funnels and garden hoses to get the oil back in.(sorry couldn't find them) i am trying a big sauce squeeze bottle next time.
Dont bother with the sauce bottle mate itll send ya over the edge. For about $20 you can pick up an oil pump like a big syringe from somewhere loke sprint auto parts or the likeQuote:
Originally Posted by scotty83
Top response mate - well done!!!Quote:
Originally Posted by scotty83
Brilliant, I"ll be on it today after work. Ah work, don't ya love it. Thanks a bunch guys, I'll get this truck sorted out yet.
hey mate if you can, before you are about to fill try and heat up your new oil a little, put the whole bottle into a big pot of water and heat er up on the BBQ if you have too. the oil si as thick as crap. if you have not got something to deliver the oil through (as per Plassies post or a McNaught Pump) then you will be there a Loooooong time and yor arms will be wrecked.
http://www.macnaught.com.au/persiste...suctionGun.jpg
That is what i use and would be lost without it. I have done it once without this pump and NEVER AGAIN!!
****P.S. Nice Bike ;)
some people adapt a pump up garden sprayer - I have used the mate's 20l drum pump, and a littler version for the 5l bottles.
The manual calls for thread sealant. My advice is to be a bit thoughtful about how tight you do the bungs up. Neither I nor my mechanic could undo some of the plugs on my old MQ - the next step was applying lots of heat, but as it turned out we moved onto the GQ while pondering the next move. Maybe if I drove the Q a bit more and thus had more regular oil changes in the transmission and diffs they wouldn't have grown in, or whatever they did :-)
Tight enough not to leak or fall out, but not tighter :-)
Well the rear diff is done, that stuff is pretty thick, even with the pump. I didn't use thread sealant so we will see ? Glad i didn't have to push it throught the hose attached to the Penrite bottle, i would still be there. The vibration i had when taking off in the truck is just about gone. Thanks all.
i would put redline oil in it if ya can afford it--it is the best by far