Thanks for the help! Yeah I replaced brake fluid @90k at a honda dealer. It was great to see all that black thick liquid turned clear when opening the reserve tank cap =)

oh, I just found out some more info from cars.com. but it seems like different sites talks about it differently. the thing is, i couldn't find anything on my car manual under scheduled maintenance.

how many miles did it drive before replacing your clutch (slave cylinder)? i know everyone is different based on driving habits. but just curious..

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Manual: Most manufacturers recommend that manual transmission fluid be changed every 30,000 to 60,000 miles. Under heavy-duty use, some manufacturers suggest changing transmission fluid every 15,000 miles.

Automatic: Service intervals for an automatic transmission vary from every 30,000 miles . . . to never. The typical service interval is 60,000 to 100,000 miles. Changing it more often does no harm.

Manual: In a manual transmission, the problem is not so much the fluid degradation, but rather fluid contamination. This contamination occurs over time as the synchronizers, bearings and gears in the transmission wear out. The resulting metal particles then float around in the lubricant. And we all know that oil with microscopic particles of metal in it does not lubricate as well as clean oil. So if these contaminants are not drained out, they will shorten the life of your transmission.

Automatic: Because more heat is generated in an automatic transmission, automatic transmission fluid actually degrades and breaks down with use.