hi i have a 91 civic hatch with a zc. i recently changed my transmission fluid. today i started to hear a whine in 5th gear and it popped out of gear once. is this because of the fluid? i used 10w-30. let me know what you guys use.

 

10w-30 what? motor oil?

 

try syncromesh.. or Honda's genuine MTF

 

Always go with Honda MTF nothing else, using standard motor oil is not a good idea for many reasons.

 

Syncromesh DOES work wonders though
To each his own opinion I guess...

 

ok thanks guys. i wouldnt hurt to run motor oil till my next oil change would it?

 

yes it would. Think of honda engineered MTF the same way as the Honda engineered power steering fluid.

 

the Honda MTF is 10w40 engine oil. thats what my repair manual says to use; which i do.

 

well i was just using what alldata recomended. so can i got 1500 miles with 10-30 or should i change it immediately?

 

If your popping out of gear I think some damage is already done. Do want to make it worse? Honda MTF for the win! If you don't see an improvement then you've got nothing to lose by trying synchromesh, but it's unnecessary for a healthy trans.

 

You can try Redline 75W-80 or 75W90, the 75W90 due thickness and need lil warmed up in the cold weather.

http://www.redlineoil.com/product.aspx?pid=46&pcid=7

I've tried 1 bottle 75W90 mixed with Honda MTF, solved prob.

 

would 80w/90 work as thats pretty much all i can find where i am located