Recent content by macy1188

Well I have been running the redline 75w-80 and it has been shifting perfectly even when cold. Not experience the hard shifts that everyone has with the -90 so long story short use the correct oil weight.

Thank you all for the help I picked up 3quarts of redline MTL 75w-80 and will be replacing tomorrow. And btw the rp was not the problem. It was that I was using -90 not 80. To all the people running the motorcraft -90 or redline this is the wrong oil and can overtime damage your transmission...

Thank you all for the help I picked up 3quarts of redline MTL 75w-80 and will be replacing tomorrow. And btw the rp was not the problem. It was that I was using -90 not 80. To all the people running the motorcraft -90 or redline this is the wrong oil and can overtime damage your transmission...

Probably a good idea to stay away from the Gl4-5 combo stuff? Now do people run the 75w-90 do to better performance when hot then and just deal with the scrappy shifting when the engine is cold? Doesn't make sense to me seems like the 75w-80 would be best all around unless your going to the...

Thank you rand I just went by what some in the Mazda forums have said. I will be switching it out first thing.

The transmission calls for gl4 75w-90 and the RP IS gl-4or 5 compatible. thanks for the reply gutsygecko

Hi guys so I have a 2012 Mazda speed three. Just replaced the transmission fluid with the 75w-90 two days ago. for about 5 minutes when the engine is cold it is difficult to shift, it does not grind unless forced but it can be a pain to get into 2nd. from what I have read it seems to be because...