Oil Change Interval - Manual Trans.

Anybody know what the transmission oil change interval is for the '99 Civic?
I looked in my owner's manual and can only find it specified for automatic
transmissions.

 

The (free) owner's link maintenance schedule accessible via
http://automobiles.honda.com/ says it's 90k miles/6 years,
whichever comes first, for your 99 Civic's manual
transmission oil.

 

For my '97 Civic, I believe it's every 30,000 miles. This is for the manual
transmission. It is extremely easy to do. Honda recommends using their
fluid. I noticed a big difference in shifting when I changed mine at 100K.
Probably the first it had been done (I bought it used). You should replace
the crush washers. The lower one is the same size as the oil drain plug.
The upper one is larger and probably doesn't really need to be changed.

Rosscoe

 

I'll second the vote for replacing it every 30K however I like to replace
both washers.

Eric

 

I gotta ask. Why?

I have never changed oil in a manual transmission and I have never
had a problem in over, ah?, 250,000 miles.

It doesn't wear out.
It shouldn't get "dirty."

 

Great. Thanks Elle.

 

you think it doesn't get dirty? i guess that's because you've never
changed it and have therefore never seen the condition in which old oil
comes out!

 

It does wear out.

It gets full of the products of friction, and there's no FILTER.

Best reason to change it: Everybody who does it says:

"HEY, IT SHIFTS BETTER ! ! I'M SO GLAD I DID IT ! ! !"

'Curly'

 

Actually, the oil does wear. Viscosity changes and additives become
depleted just for starts.

Sure enough it does. Where to you think the wear particles from the
transmission end up? Change it sometime and see what lovely stuff comes
out of there!

John

 

According to Click and Clack the Tappet Brothers, the contaminants are
the problem. See:

http://cars.cartalk.com/content/advice/transmissionfluid.html


Elliot Richmond
Itinerant astronomy teacher