Civic Racer X 7

you guys ever heard of this?

I havent bought fluid in forever and today I needed some autozone didnt have any
I jumped online and read a few people talkin about using 10w30?

who would have known

anyone doin this?

hannslebo

Yes.

You can run 10w30 in trans.

I'm using it. Manual says HMTF or 10w30 motor oil for temporary substitute. Either way...it will do no harm.

redm3turbo

Temporary is the key word here. In my opinion its better to run the 10w30 then nothing, however Id get Honda MTF in there asap.

Pleiadi79

try mtf from torco its a good solution

Bix VT

Pennzoil Synchromesh works well for me.

EJ8_Man

Synchromech is a good way to wear out your synchros. From what I've read it's a bad idea unless your transmission is on it's way out. Use Honda MTF as suggested above

94EG8

What trans? 10W30 is fine in '92 - '95 (S20) transmissions, that's what they call for and they tend to eat input shaft bearings if you run Honda MFT. '96 - '00 (S40) call for Honda MTF and tend to shift weird with 10W30 (at least the ones I tried did)

SiRCiviC94

friction modified syncromesh only unless you can get castrol syngear. want a lifetime of service out of your trans nothing else! honda mtf is ****.

92teginsc

honda mtf. lemme know if you need some as i have like three quarts of it just lying around collecting dust.

FearSC549

Whut... I just put in Synchromesh 2 weeks ago because the original MTF hasn't been changed for 123k miles.

EJ8_Man

Google the long term affects of using friction modified synchrmech in a Honda transmission.

98civdx

92-95 civic 10W30
96-00 civic Honda MTF.

guessohw

Oem Honda fluid all the way. Chnaged mine out in my newly purchased dd and could feel the difference and shifted smoother too. Just my 2 cents

94EG8

Normally that's because no has ever changed the transmission fluid before, or it was only done a few times when the car was new to comply with the terms of the warranty.

guessohw

Either way feels better and worth doing.

b20c5eg

I have a lot of experiecnce with this subject and everything I say is 1st hand. 10w30 and your transmission WILL NOT LAST. Alldata does say to use 10W30 or 10w40 but honda mtf is preferred. Honda mtf is 10w30 but they have some additaves in there also. you cant run it in your motor. And syncromesh is good for a trany on its way out like said earlier.

FearSC549

When you guys say the tranny is on it's way out, do you mean the bearings and synchro are wearing out or something worse?

I think my ISB is wearing out, but I can't tell if my synchros are/aren't. Well, it doesn't grind in any gears, but it makes a loud, harsh sound while I'm on the throttle. The sound is more present when I'm in 1st and 2nd, but less (if not, nonexistent) in 3rd to 5th. IIRC, that's related to the ISB and not the synchros?

b20c5eg

I guess I should have worded it a little different. the syncromesh is good when you have one thats starting to grind. sometimes it can help with that but not always. either way i say use honda mtf. I buy it by the case at my local honda dealer.

94EG8

Talk to anyone that deals with these transmissions on a regular basis. Honda MTF kills input shaft bearings. 10W30 doesn't.

b20c5eg

I deal with these transmission on a regular basis. honda mtf IS 10w30, but with additives. so if honda mtf "kills" input shaft bearings, then so does 10w30. Again, I deal with these transmissions everyday. Im not the best by any means, its just I have been there, done that. If you use 10w30 you transmission will not last

98civdx

My friends dad's car has seen 120-130k with 10W30 in the transmission. It's a 95 civic.
It see's 125+ miles 4-5 days a week, plus being driven on the weekends.

I know it's fine, and gets 10W30 becuase my buddy and I do all the work to the car...
I've driven it, the transmission is perfect.

94EG8

MTF is nothing like 10W30, it's a lot thinner and clear. It's almost like water.

Hidenplanvew

Honda mtf has much better metal on metal protection, 10w30 does not and will wear metal parts. Mtf is more 5w40 synthetic and is better all the way.. We use it in 800+ drag cars and haven't had much issues (dog gear trans)

94EG8

If you're running Honda MTF is 800 drag cars you're nuts. Run something like Torco RTF.