Tranny fluid swap

[Chris]

How do I completely change all my tranny fluid to royal purple Max ATF?

 

Sent from my PIECE OF CRAP DROID X2 using Xparent Red Tapatalk 2

[tanked_darren]

You'll have to disconnect a transmission line and have a friend add the fluid to the transmission while fluid leaves the line. Or pay a shop.

[Doug_Scott]

If it were me, I would either find a dealership that sells the Royal Purple and does trans fluid flushes, or buy the fluid myself and then find a dealership that will flush the old out, and put the new in. Flushing transmissions with a flushing machine will do a better job that just pulling a cooler line off and running the engine. How many miles on your transmission, and how often have you been changing trans fluid? If lots of miles, and no prior change of trans oil, I would be wary of doing it now. New fluid has full charge of detergents, and they will dissolve varnish (that is their job afterall)

[jdelrizzle]

Wow that's a first Doug, your like the only person that does not recommend a cooler line flush, I don't believe in that myself. Why not just do a pan drop.

[Doug_Scott]

Wow that's a first Doug, your like the only person that does not recommend a cooler line flush, I don't believe in that myself. Why not just do a pan drop.

 

 

 

The cooler line flush does not properly flush the coolers. It is a home garage type thing to do, and it does not change 100% of fluid. It is basically a dilution method.. Pulling the pan would be better than the cooler line method if you are just changing the fluid and not switching to/from synthetic. When you pull the pan you can change the filter and see what is in the bottom of the pan.

 

A proper flushing machine does a far better job that just pulling the line and running the engine.

[Gurrzt]

I would never do a reverse flush on the transmission, I have heard too many horror stories concerning the proceedure. Unless your fluid is burnt, just drop the pan and replace the filter, and fill it up with a Dexron VI compatable fluid. The fluid that is still in the TC is minimal.

[ujtruck]

if your trans didn't get service recently, then hooking up to a flush maching wll cause issues - I warned you you don't want your transmissing to loose gears, slip etc right?

 

then drop the pan, change the filtter, add 5 qts - done

 

here some cut and paste:

"We always recommend Serviceing the transmission the correct way, which is to drop the pan, drain the fluid, replace the filter and gasket.

A "Quicky" service where they use a power flusher to flush fluid thru your transmission could cause damage. Every transmission generates a little wear which is collected in the pan, when power flushed this wear can be forced into places (ex: check valves) where it can damage your transmission. In addition if your transmission has metal or clutch material in the pan (whick in an indication of problems to come) you will not know this. We do have a power flusher which will will use if a customer insists. How ever we do not recommend it."

 

why do we pay and buy headaches

[Gurrzt]

if your trans didn't get service recently, then hooking up to a flush maching wll cause issues - I warned you you don't want your transmissing to loose gears, slip etc right?

 

then drop the pan, change the filtter, add 5 qts - done

 

here some cut and paste:

"We always recommend Serviceing the transmission the correct way, which is to drop the pan, drain the fluid, replace the filter and gasket.

A "Quicky" service where they use a power flusher to flush fluid thru your transmission could cause damage. Every transmission generates a little wear which is collected in the pan, when power flushed this wear can be forced into places (ex: check valves) where it can damage your transmission. In addition if your transmission has metal or clutch material in the pan (whick in an indication of problems to come) you will not know this. We do have a power flusher which will will use if a customer insists. How ever we do not recommend it."

 

why do we pay and buy headaches

 

 

AMEN! a big +1 on that.

[grimmysnr]

A pan drop and filter change is the best bet. I saw an article over on Bob is the oil Guy that did all the math as far as how much fluid is changed and if you were to just drop the pan a few times you would have well over 90% of the fluid swapped out. I actually did a pan drop on my Impala and got my oil analyzed before and after and everything showed perfect. They annotated some residual copper accumulation but since the oil change copper hasn't increased which means the new oil is doing its job. Dropping the pan is easier and can be done at home with minimal tools. Just be sure that the new oil you select is compatible with old ATF. I used AMSOIL but I am sure other do the same. The stock Dexron stuff is probably just as good and the oil analyses didn't raise any concerns.

[Black02Silverado]

Here is a linkhow one person has done it.

[Doug_Scott]

I would never do a reverse flush on the transmission, I have heard too many horror stories concerning the procedure. Unless your fluid is burnt, just drop the pan and replace the filter, and fill it up with a Dexron VI compatible fluid. The fluid that is still in the TC is minimal.

 

If you drop the pan and change the filter, it will take approx. 5 litres of oil. If you do a trans overhaul it takes about 12 litres. Where do you think the extra 7 litres is hiding? You may have a litre or three in the coolers, trans passages, clutch packs, accumulator and servos. That still leaves at least 4 litres unaccounted for. Not sure I would call the 4 litres that is sitting in the lower half of the torque convertor "minimal".

[Doug_Scott]

if your trans didn't get service recently, then hooking up to a flush maching wll cause issues - I warned you you don't want your transmissing to loose gears, slip etc right?

 

then drop the pan, change the filtter, add 5 qts - done

 

here some cut and paste:

"We always recommend Serviceing the transmission the correct way, which is to drop the pan, drain the fluid, replace the filter and gasket.

A "Quicky" service where they use a power flusher to flush fluid thru your transmission could cause damage. Every transmission generates a little wear which is collected in the pan, when power flushed this wear can be forced into places (ex: check valves) where it can damage your transmission. In addition if your transmission has metal or clutch material in the pan (whick in an indication of problems to come) you will not know this. We do have a power flusher which will will use if a customer insists. How ever we do not recommend it."

 

why do we pay and buy headaches

 

How can it force stuff from the bottom of the pan past the filter into the valve body? You do know that it is in the bottom of the pan due to the filter don't you? I do like the first line of your quote, just because he starts off saying it is the correct way, does not make it so. I am not a fan of changing less than half the fluid. I am actually surprised that whoever said what you quoted is happy only changing half the fluid. But, to each their own. Personally, I am not one of those that feels that bobtheoilguy is the god of oil info.

[tanked_darren]

I would never do a reverse flush on the transmission, I have heard too many horror stories concerning the procedure. Unless your fluid is burnt, just drop the pan and replace the filter, and fill it up with a Dexron VI compatible fluid. The fluid that is still in the TC is minimal.

 

If you drop the pan and change the filter, it will take approx. 5 litres of oil. If you do a trans overhaul it takes about 12 litres. Where do you think the extra 7 litres is hiding? You may have a litre or three in the coolers, trans passages, clutch packs, accumulator and servos. That still leaves at least 4 litres unaccounted for. Not sure I would call the 4 litres that is sitting in the lower half of the torque convertor "minimal".

 

You would be right.

[ujtruck]

if your trans didn't get service recently, then hooking up to a flush maching wll cause issues - I warned you you don't want your transmissing to loose gears, slip etc right?

 

then drop the pan, change the filtter, add 5 qts - done

 

here some cut and paste:

"We always recommend Serviceing the transmission the correct way, which is to drop the pan, drain the fluid, replace the filter and gasket.

A "Quicky" service where they use a power flusher to flush fluid thru your transmission could cause damage. Every transmission generates a little wear which is collected in the pan, when power flushed this wear can be forced into places (ex: check valves) where it can damage your transmission. In addition if your transmission has metal or clutch material in the pan (whick in an indication of problems to come) you will not know this. We do have a power flusher which will will use if a customer insists. How ever we do not recommend it."

 

why do we pay and buy headaches

 

How can it force stuff from the bottom of the pan past the filter into the valve body? You do know that it is in the bottom of the pan due to the filter don't you? I do like the first line of your quote, just because he starts off saying it is the correct way, does not make it so. I am not a fan of changing less than half the fluid. I am actually surprised that whoever said what you quoted is happy only changing half the fluid. But, to each their own. Personally, I am not one of those that feels that bobtheoilguy is the god of oil info.

 

 

True - most stuff will stay in that paper filter,

 

what i'm trying to say here, if its hasn't maintained properly, then when you have the tranny flushed it breaks sludge loose and screws the tranny up,

 

so don't flush, just pan drop, filter change. and take some fluid via cooler lines - no need to supper clean.