Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Diff and gear oil. Fill to overflow, or service manual capacity??

Crunk81us · 06-22-2016, 06:35 PM

I am going to be changing my diff and gear oils again with lighter weight oil.

Last time i did them, i filled until the fill hole dribbled.

BUT

I fit a lot more in than the service manual recommends.

So what is the go here?

I dont want to have too much oil in there sapping power from my 86 series race car..

I have always filled to the fill hole before.

manual states 2.2 for GB and 1.1-1.2 for diff.

I fit appx 2.8-3l in GB and 1.5-1.6 in the diff

06-22-2016, 06:35 PM	#1
Crunk81us Member Join Date: May 2016 Drives: Toyota 86 Location: Australia Posts: 39 Thanks: 8 Thanked 5 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Diff and gear oil. Fill to overflow, or service manual capacity?? I am going to be changing my diff and gear oils again with lighter weight oil. Last time i did them, i filled until the fill hole dribbled. BUT I fit a lot more in than the service manual recommends. So what is the go here? I dont want to have too much oil in there sapping power from my 86 series race car.. I have always filled to the fill hole before. manual states 2.2 for GB and 1.1-1.2 for diff. I fit appx 2.8-3l in GB and 1.5-1.6 in the diff