Reading through some manuals it says that the Diff takes 90w gear oil (I knoew that) and the manual transmission takes normal 10-30 motor oil?
Can’t say that I have ever checked the manual transmission oil…anyone have any expierence with this?
Specs: 1990 B18A1 w/ Cable trans (same as Ys1 without hydro [don’t know label])
theres 2 bolts on the passanger side of the tranny… one has a 3/8 drive the other is a big bolt right above it… one is drain… one is fill(when it flows out the fill hole… its full)
ive done the 10w30 thing a few times… some oils the thing flat out hates… halvoline is the one i remember with ALOT of grinding… penzoil worked pretty good
best bet would be to just goto honda and get some hondaMTF (10w30 with additives i beleve) or put syncromesh in it
Epek Sound welcome to the board, first thing, don’t listen to Radzer0, however this post he actually has some info correct.
Our transmissions take 10w30 motor oil, Honda MTF, and some use GM Synchromesh. The last one is the one I use and recommend, it is $9.00 a quart from your gm dealer but its worth its weight in gold.
Capacity for our trannys is about 2.3 quarts.
The fill plug is a 17mm headed bolt, drain plug is a 3/8 drive head.
My $0.02
Alan
i thought it wasn’t good to use syncomesh unless you synco’s are in poor condition…i belive its too thin
from what i hear hondaMTF works the best if ur tranny isn’t having any problems
syncromesh is 10w30 based with alot more additives than honda MTF… alot of higher end replacement manual trannys (not refering directly to honda models) all say use syncromesh all the time in them because of its quality will extend life
I ususally jus go to a Honda Dealer and get my tranny fluid…
Its thicker then honda MTF IIRC, both are fairly thin however. Talk to anyone, most people will recommend 1 or the other. I have had no problems with it, my car was hard to shift with MTF so I figured I would try it, and its worked wonders.
Alan
you also might want to try royal purple synchromax. its worked awesome for me so far.
Thanks
Excellent, thanks for the information.
never ever ever ever use penzoil for anything. my cousins car blew after years of using it, we come to find from a gm mechanic that penzoil uses teflon in their formula which bonds to parts. when u change the oil the bonded “oil” stays bonded, so ur adding gunk over and over and over to parts. took a major toll on my cousins camaro. so yeah either honda mtf/atf or some kind of synchromesh like gm or redline. the gm stuff is what they used for years in their cable trannys.
I dont know if you know this or not, but you totally just contradicted yourself. You said never to use pennzoil products because they are bad for your parts, but then you recommended GM synchromesh. In fact, Pennzoil MAKES the GM Synchromesh. The GM stuff is just in a different bottle and costs more. Check your sources next time.
they are made by the same company BUT the gm synchromesh is transmission fluid. im talking about penzoil MOTOR oil. read before you speak.
I think my transmission fluid is getting low… harder to go through gears than before… and it grinds in 5th… and i know the transmission has no grinds in it. Do any of you guys use REDLINE mtf? My buddy uses it and says it’s good stuff. Thanks.
Heard it kills syncros…stick with Honda MTF or syncromesh, tons and tons of us use those with no probs.
ive also heard the same… redline mtf is a bad thing to use
I think its kinda the same thing as breaking in a motor, yeah sure Redline MTF is good stuff, same as Mobil 1 oil…But you dont use Mobil 1 in a brand new engine becasue its TO slippery. Same thing in the tranny, but it takes its toll of being TO slippery on a new or old tranny, the syncros cant work right becasue they require a certain amount of friction to work, or somthing, cant really remember what the reason was, someone correct me if im wrong.
where do you get the gm syncromesh?
autozone sells it… penzoil syncromesh $5/quart
or any gm dealership you can get gm brand from (made by penzoil) for between $10 and $15 a quart
gm synchromesh is all i have to say 
Well i appreciate your responses… but ther’s alot of rumors from people who have no experience. What i’m asking is… for the people who USE Redline… what do u think of it? Ther’s always gonna nay-sayers about products… but until your try them out… how could u believe them? Eitherway… my buddy uses redline in his gsr… and says it’s good… but i want to know how many people on the board use it. Thanks