[M2M]

Originally Posted by Forddan

Duke36, ZDDP will not be a problem to the transmission gears ?

If I use a mixture of 600W oil and STP, the ZDDP will not be a problem ? Also for any yellow metal I could have there ? Mine is a January 29 Tudor and I do not have idea how much is still original in the transmission.

How many more times are you going to ask the same question? This is your second thread on the same issue in as many days and numerous people have answered it and provided links for further reading. People have told you what trans oils you can buy that are thicker than 600w as well as being yellow metal safe and where to buy them. What don't you still understand?