Transmission Fluid Change

[rwallican]

Any opinions on just draining/filling transmission vs. flush/fill? My dad and I were arguing about it. I was told that the LS 400 doesn't need to be flushed. :chairshot:

[obergc]

Lots of opinions on this subject, here is a link that talks about it in great length.

http://www.clublexus.com/forums/showthread...&threadid=85470

[tansupplyman]

I just started last week with an oil change to drain and add 2 qts of type IV ; bought a case at a Toyota dealer so in 18,000mi I will have 12 fresh qts in[ was $3.95/qt.] Note I do know that I will be draining some of the new-don't go there.

But if the existing fluid looks extremely dark or smells burnt--suggest to change all !!!

[UCF3]

You don't have to change your Transmission fluid unless it's absolutely needed.

The manufacturer recommends that you flush it, since the transmission is an essential item. It sounds like a good idea to me. :)

[tansupplyman]

I thought that after 167,000 it should be slightly redder !! :P

[UCF3]

It changes colour? ^_^ :whistles:

[92Lex]

hey, i pan drained my tranny a few days ago. i read numorous postings stating that a pan drain will be about 2 quarts...i got more like 3 because my front tires were on ramps. somebody told me to just add 2 quarts anyways...so i did that but when i checked my dip stick (norm. op. temperature and at idle) it was still below the line. so i slowly added a few ounces at a time to get it right in the middle of the HOT part of the dip stick. i ended up adding a full quart so im at 3 quarts for my pan drain. when my motor is off and cold (mornings) the atf fluid is actually in the 'hot' zone. am i doing something wrong here? any help would greatly be appreciated. thanks.

[92Lex]

hey, i pan drained my tranny a few days ago. i read numorous postings stating that a pan drain will be about 2 quarts...i got more like 3 because my front tires were on ramps. somebody told me to just add 2 quarts anyways...so i did that but when i checked my dip stick (norm. op. temperature and at idle) it was still below the line. so i slowly added a few ounces at a time to get it right in the middle of the HOT part of the dip stick. i ended up adding a full quart so im at 3 quarts for my pan drain. when my motor is off and cold (mornings) the atf fluid is actually in the 'hot' zone. am i doing something wrong here? any help would greatly be appreciated. thanks.

[rwallican]

Thanks fellas. I think I'll go with the flush/fill. Better to be safe than sorry!