Gear and diff oil help

Grumps

Always happy, apart from when I'm not 🤬
Supporter
British Zeds
Joined
Apr 27, 2014
Points
226
Location
Forest Town, Mansfield
Model of Z
Z4 e85 2.5i
I used Castrol syntrax and syntrans on mine. Available from Opie Oils.
 

Tracy Dee

Zorg Guru (III)
The M44 Massive
Joined
Aug 3, 2015
Points
145
Location
Hertfordshire
Should it be changed? Mine never has diff or gearbox according to service bills.
Still think I need to see if my electrical drain prob can be sorted before thinking of anything else.
 

Rudyrov

Zorg Guru (I)
American Zeds
Joined
Jan 29, 2014
Points
95
Location
Phoenix, AZ
Model of Z
2.8 L Roadster
My cars shifting quality improved with the gear oil changed, I also changed the differential oil and the result was reduced gear wine, so for me the answer is yes. Oil gets old and always benefits from a refreshing oil change.
 

Tracy Dee

Zorg Guru (III)
The M44 Massive
Joined
Aug 3, 2015
Points
145
Location
Hertfordshire
Ah maybe if I got it still next year might be something to look into more garage visits. :p:D
No problems with gears or whines mileage now 77 k.
Had regular engine oil changes.
Thank you .
Tracy.
 

Devon Z

Zorg Guru (III)
Supporter
British Zeds
Joined
Jan 1, 2012
Points
144
Location
Brixham, Devon
Model of Z
99 2.0 Individual
I used Amsoil fully synthetic gearbox oil on the recommendation of our US
friends on Bemmerforums about two years ago, it improved the gearbox no end. I tried to get some to do a change for a friend but couldn't find it anymore. Castrol Syntrans in the diff as mentioned.
 

NZ00Z3

Zorg Guru (IV)
Supporter
New Zealand Zeds
Joined
Dec 9, 2014
Points
158
Location
Timaru, New Zealand
Model of Z
3.0L, 2.8L, 2.0L Z3 Roadsters
This is what I use:

Small case diff- Redline 75W90.
Getrag 220 manual box- Redline D4-ATF (yes that's auto transmission fluid in a manual box, but it matches the spec for the yellow label MFT-LT-1 lubrication applications)

I like the results in both cases.
 
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