2000 Corola Transmission Fluid Change/Flush
Hi everone, this is my first time posting here,
I have a 2000 Corolla (automatic transmission) with just about 100K miles on it. I took it to local lube shop to get an oil change last weekend and they came out halfway through and told me that my transmission fluid needed to be flushed for $100. They showed me a swab of my fluid, which was brown vs. new fluid (which was red) and made it sound like this was a serious problem (which I read as them wanting to make a quick buck off of me).
I thanked them for pointing it out but declined the extra service, since then I've been reading about ATF and the various opinions out there about draining vs. flushing and how flushing the fluid on an older car can be harmful to the transmission. I checked my fluid again when I got home and it was brown although it does not smell burnt which I understand indicates serious problems.
So I'm really not sure what to do. Should I have it flushed, drained, or just leave it alone? As far as I know this car has never had any of these done. I've read that if you get a flush you should also get the filter changed (for more $) but I've also read that some (or all?) Toyotas do not have filters but just a screen, how would I know which my car has?