ATF exchanged

ATF in BC7 SUBARU Legacy LSi US model was thoroughly replaced into D2 TOYOTA Castle genuine Automatic Trans-axle Fluid though machinery had been made by JATCO with the reason of the generations were the same.

As dusty old oil shows their exists some suspicion on the adaptation of DOT5 oil on 20 years old JATCO Automatic trans-axle, once for short period the DOT5 has a permission by the SUBARU company as an alternative oil but soon a specific oil was given as a genuine one.

After re-confirming the performances and reactions, releasing clutch and engaging clutch timing and transitions and transferred torque with converter's loss, all the physical performances were far improved, eliminating strange bad habit stumbling at the stage 2nd to 3rd gear.
The selection of oil has much to do with the trans-axle performance, this is the same as blood in living thing with blood type apparently.
Yes, the transfusion with different type blood means the death of the organs.

I feel DOT2 is more adaptable than DOT5 for an old machinery?

Here I exhibit the very special way to exchange ATF with minimum loss of it.

1, Extract old oil from drain plug hole on the oil pan.

2, Close the plug tight at decided torque.

3, Pour new ATF of exactly scaled 3L from level gauge hole making use of funnel device.

4, Disconnect the oil pressure outlet line at oil cooler portion.

5, Before starting motor prepare some over 5 litter vessel and put the hose end in it.

6, Start the motor for few seconds till bubbles come out from the hose tip filling the vessel about 3 litter old oil in valve body, torque converter and oil pressure lines.
All the oil lines are filled with new ATF, but the server pan is empty in this stage.

7, After re-connecting the hose as it was, pour residual new ATF as performed at the beginning till the level gauge tells the adequate marking.

Remember here, the oil temperature must be monitored if it is cold or hot about 80 degree celsius, there must be two ways of descriptions, cold level and hot level.
Over 95% of ATF would be replaced with no loss if this way is applied on ATF exchanging method.

This way is proposed by a specified served technical chief engineer who was a director of Automatic Trans-axle designing division in Mitsubishi Motors Co.
The researchers in the field were helpfully advised by him for long time interval, of course it's no doubt that he must be
an indispensable person in our field.
Keeping the knowledge in Web site with huge files.