T-45 oil requirements
Last weekend i changed out my clutch package. In past T-5tranny flushes I refilled with Mercon V. But this being a tremec T-45, i looked for my owners manual and could not find it. So I called my local ford dealer service department up to inform me of what type of oil to use. The tech guy asked me for my VIN and after giving it to him, his answer to me was not to use Mercon V, but 75/90 gear oil. I thought. That to be strange, but I went and bought 5 qts of Royal Purple 75/90 and installed it. I have been running it for 4 days now.
Is this info Ford gave me correct? I just want to know for sure before too much time passes and something goes wrong with my transmission based on wrong info.
Keep this in mind, I am looking for facts not preferences. I prefer Royal Purple, I have RP in my diff,and engine too.
Thanks for any real facts.
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2015 Race Red Performance Package GT 5.0 (435hp) stock
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