What mileage or duration should I change the transmission oil of my 1999 Honda accord (HONDA ACCORD 1999)

Filter is on the application list and oil is acceptable, though as it is a basics oil I suggest you take the high mileage claim with a pinch of salt.
Chances are the oil additive pack isn't as good as that used in top-line branded oils from oil companies with their own full laboratory facilities.

High mileage oil is intended for engines covering a high annual mileage and not an excuse to have fewer oil changes with engines covering only an average annual mileage or fewer than that.

1994-1997 Honda Accord Rear Motor Mount - YouTube

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https://www.youtube.com/watch?v=QTDLBZonjvo
Aug 14, 2014 - Uploaded by NutzAboutBolts
1996 Honda Accord rear engine mount Tools: Impact wrench 3/8 ratchet ... Wat size are those bolts in the rear motor mount, I have to replace them ..... 1998-2002 Honda Accord 3.0 V6 Spark Plug Replacement - Duration: ...

How to Replace the Motor Mount on a Honda Accord ...

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https://www.youtube.com/watch?v=jCIBNq0jg0U
Oct 17, 2013 - Uploaded by Chandler Cox
How to Replace the Motor Mount on a Honda Accord .... I have 2001 Accord and engine/front vibrates when car is idle. .... onreplacing and removing rear mounts for this year and model car.... 1998-2002 Honda Accord 3.0 V6 Spark Plug Replacement - Duration: 12:48. by CharlietoKind 103,467 views.

How To Change A Motor Mount and Transmission Mount ...

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https://www.youtube.com/watch?v=vkO19Ux9q9M
May 30, 2013 - Uploaded by klowny1969
Step by step honda transmission motor mount and transmission... 2000 2001 2002 2003 2004 2005 engine mount how to replace install check change ... MAKE A VIDEO TO INSTALL THEREAR MOUNT MOTOR PLEASE .

go google and type in-- front struts on honda accord 1999 model --and there is a video on youtube .com that shows you how to do ti

Honda is known to have issues with the transmission on Acura and Honda Accord with cars build between 1999-2002.
The reason is that those transmissions does not have an internal transmission oil filter built in and as the clutches start to wear down the oil becomes contaminated.
The first step is to make a complete transmission oil change ( DO NOT FLUSH THE TRANSMISSION IT IS A BIG NO ).
Use only Acura ZF1 from Honda, I will strongly recommend to install an external transmission oil filter.

10W30W oil any major brand, trans uses Honda transmission fluid type Z1 only

Hi:
Boy, you have a low mileage car!

I would think that you would not need much done, if the timing belt was just changed, but perhaps your transmission servicing should still be done, as that would not have been done with the belt change. Of course, your normal oil changes need to be done too.

THE LIGHT COMES ON TO LET YOU KNOW WHEN MAINTENENCE IS COMING DUE OTHER THAN OIL CHANGES. SUCH AS, TIRE ROTATIONS, TRANSMISSION SERVICE, ETC. ROUTINE MAINTENCE ACCORDING TO APPROXIMATED MILAGE. IT SHOULD HAVE A BUTTON ON THE DASH TO THE LEFT OF THIS LIGHT THAT CAN BE PUSHED IN WITH A PEN TO RESET. REFER TO OWNERS MANUAL FOR SCHEDULED ROUTINE MAINTENANCE ACCORDING TO YOUR OVERALL MILEAGE

Just the very top ring of the transmission dipstick is visible with the air filter housing lifted up. Removing the upper air filter housing and the rubber ducting for the intake will allow enough room for a transmission funnel to be used.

another one ?? flex plate behind the torque converter by the description ,gearbox out to fix

well i have a 1996 honda accord LX and i see no problems with it... parts are cheap on cost and the gas mileage is good.... 112,000 miles is VERY good for a honda ive seen up to 390,000 as long as you keep the motor and tranny in shape and keep them clean