Does anyone have an opinion on using Clark T-04 30w in a transmission that calls for dexron III? It does work, and I have seen it breath new life into a worn transmission. I question the long term effects of running it in a transmission from the beginning. Seems like it might effect other parts due to it's higher viscosity. I am strongly against it but some people are not. I could be the fool and that's fine, I'm just looking for thoughts or experiences from outside sources.

Thanks
Greg