I took my Mazdaspeed 6 to a shop for a complete synthetic fluid change. I thought I purchased 3 quarts of Redline MT90 for the transmission but it turned out that it was actually only 2 quarts of Redline MT90 and too many quarts Redline 75w90 Gear oils (4). I didnt know I only had two quarts of MT90 until I went to look for quart #3 and couldnt find it. To make matters worse the funnel I used spilled about 1/2 quart. So now I have 1 1/2 quarts of MT90 and the remainder of the transmission is filled with Redline 75w90. This was the only thing I could do since I already drained the factory fill. Does anyone know if this will be a problem. I was planning on ordering 3 more quarts of MT90 but I am unsure if I should continue driving the car until I get the fluid switched out. Appreciate any advice you guys can give me. Thanks.