Originally Posted by IllaNoizeTV

Thanks bro. Sounds like alot of work and I work 6 days a week, the day I have off I use it to rest and relax so im prolly gonna take it some where and do a complete flush eventually.

Originally Posted by Mustang5L5

If anything I think doing a drain/fill is easier than an oil change.

No filter to swap out or undershield to remove


Just make sure you have a funnel that will fit the dipstick tube for the trans

Originally Posted by IllaNoizeTV

Fineeeee... I'll drain/fill it. Do I drain the whole thing or only 3 quarts every time I do an oil change?

Originally Posted by coffeysm

You just pull the transmission plug out and let it drain. BUT, make sure you put it in something you can measure first and do it when it's COLD. Then fill in the same amount you took out.

Originally Posted by IllaNoizeTV

Fineeeee... I'll drain/fill it. Do I drain the whole thing or only 3 quarts every time I do an oil change?

Originally Posted by Indecisive

I did this for my first round of drain and fill. Then I found their synthetic stuff and i'm using that now.

Castrol TRANSMAX™ FULL SYNTHETIC MULTI-VEHICLE

and here's the datasheet showing that it is spec'ed for JASO 1A
Data Sheet

Originally Posted by Indecisive

Transmissions generate lots of heat. Heat will break down the oil's ability to lubricate properly and then your clutch packs will wear down and lose material. When your clutch packs lose material they start slipping and don't become effective at transferring the work from the engine to the wheels.

The danger comes when you don't change fluid regularly. The clutch material will actually become suspended in the fluid and that will keep the transmission from slipping. So, because the suspended clutch material is whats keeping the transmission working properly when you replace the fluid with new clean fluid, the transmission is now slipping and shitty. This is what causes the myth of transmission fluid changes break your transmission.

Flushes take this a step further and replace ALL the fluid but it also usually puts some pressure in the system, or detergents or reverses the flow, so this will dislodge the material and it will now go into other areas of your transmission and make things worse. Generally a flush with a machine using detergents isn't advised. I'm pretty sure a Nissan transmission flush doesn't have any detergents though, just fluid.

so after all that...regularly changing your fluid is recommended, just like motor oil changes. However if the fluid has never been changed and it's a high mileage car, the transmission may be barely holding itself together.