FoRcE FeD GT-FOUR
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wat type of oil do i use in the gearbox and diff in a st185 gt-four?? is it just a synthetics 75-90 lsd oil??? does it have to be lsd??? synthetic?? any one know for sure?
ST185 GT-FOUR":xpf79rj0 said:wat type of oil do i use in the gearbox and diff in a st185 gt-four?? is it just a synthetics 75-90 lsd oil??? does it have to be lsd??? synthetic?? any one know for sure?
Denver_whiteST185":3snl959w said:from what ive gotten from the MR2 boards is that 75W-90 GL-4 gear oil is the best for our trannies and diffs.
T-Trac":sg75cgwx said:Denver_whiteST185":sg75cgwx said:from what ive gotten from the MR2 boards is that 75W-90 GL-4 gear oil is the best for our trannies and diffs.
If you want smooth shifts and dont mind blowing up your transfer case, go ahead and use GL-4. We need GL-5 protection in our gearboxes because of the transfer case that uses the same fluid. Most GL-5 fluids are meant for differentials and do not offer any protection for our synchros. Ideally you want to use a 75/90 fluid that protects for GL-4 and GL-5 so that you can have synchro and transfer case protection. I've been doing quite a bit of digging around and it seems that Castrol Syntrax Universal would be a good match, but you cant get it in the US, so I just ordered some Silkolene Silktran SYN 5 which seems to fit our application as well. I wont know how well it works till I try it.
Use GL-5 Hypoid Diff Fluid in differential, do not use GL-4 in diff. Might as well just put water in it if you do!!
just my $0.02
Denver_whiteST185":16202fcq said:Maybe we should see what Subaru's, Evo's, and the like use???
grip addict":1q57axve said:i know alot of the subie kids use a 50/50 split of valvoline 80-90 and syncromesh. gives em the quick shift of doom and offers... decent protection..
db":3hrjcxd9 said:grip addict":3hrjcxd9 said:i know alot of the subie kids use a 50/50 split of valvoline 80-90 and syncromesh. gives em the quick shift of doom and offers... decent protection..
You know what. Maybe we shouldn't use what the Subie guys use, and just see what the Evo guys use. :evil:
Denver_whiteST185":1j7bvsrq said:Heres my two threads.
http://forums.evolutionm.net/showthread.php?t=254045
http://www.awdpirates.net/phpBB2/viewto ... highlight=
the misubishi guys are saying that we should use Redline MT90 GL-4 and diaqueen (mitsubishi oem diff fluid)
http://www.lancershop.com/customer/prod ... t=0&page=1
ST185 GT-FOUR":veaz5gz8 said:so it needs to be a gl-5 or higher rated oil am i right? so i can use a gl6 rated oil? also does it have to be LSD? thats wat i want to know. also wats better in the diff? a 80-90 or a monograde oil???
Denver_whiteST185":2urz7f1o said:after talking it over with the guy at the tranny shop, he recomended using a really good GL-5 fluid. im going with redline 75w-90 gl-5