batbo6

Anyone know of a synthetic trans fluid I can use in my AU I6 Auto?

TopGhia

All trans fluids are synthetic. Use car manufacturers recommended fluid or disaster will strike.

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batbo6

Sorry, but I dont believe this is quite true.

Synthetic oil for AU trans anybody?

snavy

look in the owners manual, should tell you, go to a car store, they will match up the specifications to what oil you should buy.

TopGhia

Castrol developed TQ-95 especially for Ford 4 speed transmissions, it is in the initial fill and is the recommended replacement.

It is also used by Maserati, and they would not use an inferior fluid in their cars.

You can choose not to believe, that's your option. But to change fluids you have to flush out the old stuff and completely replace it, you can't mix the two.

My auto has done 220,000k's on Castrol TQ-95, (1 complete change) with no problems. If you can find a fluid that is better than that, go for it.

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harasn

Castrol TQ95 is the spec that BTR (trans manufacture) want used in the trans. Use only this oil and change the filter and seal on the transmission sump. The reason maserati use the same oil is that they use the same transmission as well.

topghia, how do you do a complete oil. You cant change the oil in the torque convertor like you could in early autos so there is still 7lts that you cant change. Just wondered if you knew a way, I'm not being smart!!!

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steed

Dexron III for 3 spd is mineral based. TQ95 (castrol), 95LE (valvoline) etc for 4spd are all synthetic.

TopGhia

Yea, a lot of people think "synthetic" is some sort of God material that can work miracles. A good TV campaign helps to propagate the myth.

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Great White

Regardless of how good the Castrol Trans fluid is, Changing half of it is not good enough. The fact that more than a service amount of fluid remains in the torque convertor just reduces or improves the new/old fluid a little.

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BluAU2

What about these power flushes that some of the Ford dealers offer - particularly for late models without dipsticks.

Apparently they disconnect the cooler lines and tie in a special machine. Then, with the engine running (I assume), the machine removes the old oil from one line and injects the exact same amount of new oil into the other. Supposed to give a full change in one go. I was quoted around $160 to $180.

Yes, I've done it the manual way (2 lts a time) on other vehicles but was wondering if anyone knew any more about the dealer's method.

Chris.