R34 Automatic Questions.

[iseekool]

Hi all,

A few quick questions in regards to my R34 auto, I'm planning to change fluid soon.

- Does the transmission have a drain plug on the pan or do I need to remove the pan for changing the fluid - I just want to confirm? (i've read somewhere on this forum that the R34 does have a plug - but I cannot find the article).

- Is Castrol Transmax Z ok for this application? (I've already bought 2x 4L bottles).

- Will it mix (compatible) with the old trans fluid? - as i know i will not be able to get 100% of it out then after a month or so I'll flush it again.

- Will the shifting change?

- Is there anything I'm missing/forgotten?

Cheers

[Sammy34]

Hi all,

A few quick questions in regards to my R34 auto, I'm planning to change fluid soon.

- Does the transmission have a drain plug on the pan or do I need to remove the pan for changing the fluid - I just want to confirm? (i've read somewhere on this forum that the R34 does have a plug - but I cannot find the article).

- Is Castrol Transmax Z ok for this application? (I've already bought 2x 4L bottles).

- Will it mix (compatible) with the old trans fluid? - as i know i will not be able to get 100% of it out then after a month or so I'll flush it again.

- Will the shifting change?

- Is there anything I'm missing/forgotten?

Cheers

If your going to get change the fluid Id recommend getting a service done with new filter etc. And I wouldnt be doing that yourself enless you have experiance with these auto gearboxes. The pan etc have different size and length bolts holding it together and if you put them back in the wrong spot you can lock up the auto and do all kinds of damage. Engine oil is one thing but servicing these gearboxes should be left to someone experianced or a proffesional.

[iseekool]

I've already done a partial flush.

I put the car on a slight angle (front higher than the rear) this is so I can drain as much fluid as possible.

Cleaned area around sump plug.

Found the transmission fluid sump plug (rear of the sump).

Removed trans dipstick to allow air inside.

Drained fluid - removed a little over 2L of fluid.

Returned sump plug.

Filled up about the same amount of trans fluid.

Drove car lightly around for around 10 minutes to operating temp.

Stopped car on level surface (kept engine running), checked level and topped up slightly.

After the partial flush - shifting was instantly smoother and a tiny bit faster.

I'll be performing 2 more flushes over the coming months.