Classic Audi - View Single Post - Oils for gearbox and rear differential MB ur

BackintheFold · 04-07-23, 12:36 PM

Another Q...can I use GL4 in the rear diff? Just to top up? Would it mix with GL5?
Still finding time to check the service history for details of the last fill up.
Thanks.

04-07-23, 12:36 PM	#4
BackintheFold Senior Member Classic Audi Club Member Join Date: Feb 2019 Location: Near an MB ur Quattro Posts: 1,191	Another Q...can I use GL4 in the rear diff? Just to top up? Would it mix with GL5? Still finding time to check the service history for details of the last fill up. Thanks. __________________ 2014 S3 (daily drive) 1987 MB ur