Thread: ATF Group Buy?

Many who have undertaken a replacement pan , report that the filter
had no contamination , and why would it ? There's no combustion
in the system and it has magnets for ferrics .........
What about the oil only , rather than that expense / leakage problem.......

New pan comes with a separate filter, OEM is in-built.
The problem seems to be the breakdown of the oil not contamination.
You could just do a flush I suppose, a megaflush would be better but uses na lot of oil.

This seems a vastly inflated price for oil. Using the 6HP's in falcon XR's modified for post turbo upgrade, we only fill with penrite and have no problems. Also consider using Redline if you still want to pay for it.

is this stuff a DEXRON 6 spec ATF????

No idea what this fluid is, but from past experience, it's best not to deviate from manufacturer's specifications.

The trick is to try and obtain the EXACT stuff for less money. For example the ESSO lifetime fluid purchased from an Audi dealer (same ZF gearbox) is cheaper than from a Land Rover dealer, the last time I looked into this, which was a while ago.

Since Ford also use the ZF gearbox, perhaps it may be cheaper still, getting it from a Ford dealer. Best to shop around, but not to deviate from the specification.

As Castrol put it correctly, "oils aint oils".

Oil selection isn't necessarily about what's best for the box, but whats best for the application.

I'll assume knowledge about viscosity and it's variation at temperature.

Dex 3 is a common fluid in everyday cars and as such need to be reliable in longevity, easy on the box i terms of shift hardness and cope with a variety of driving conditions and styles. It will maintain it's Cst rating (centistoke, measurement of viscosity) across a moderate range of temps. Dex 3 viscosity should be:

Vis @ 100°C, cSt 7.5 Vis @ 40°C, cSt 34

A harder fluid llike redlline racing atf has viscosity as below.
Vis @ 100°C 4.9 Vis @ 40°C 23.2
This will provide much firmer surer shifts, especially when combined with other mods that will be done to boxes used for this application. However, a std 4HP with a firmer shifting oil would provide for better driving in conditions such as sand and mud where you don't want the box to lag while selecting gears and possibly loosing momentum.

Tempest is correct, oils aint oils, as castrol isnt castrol any more.

Incorrect ATF in the D3 however causes failure of the internal control unit. This in turn causes the physical failure.

When you say internal Cont unit, is the computer in the pan? like a 6HP? or is it a 6Hp, forgive the ignorance but my champagne taste only extends to a D2 budget