royal purple m6 fluid
08-03-2008, 08:31 AM
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royal purple m6 fluid Hey guys i want to switch my trans fluid to synthetic. I noticed that Six speeds say they only recommend Mobile 1 ATF. I want to switch over to royal purple and on their website they recommend Synchromax for the T56 and not their Max ATF Fluid. Which one should i use?
08-03-2008, 09:39 AM
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Syncromax is what I recommend as well . I have built hundreds of manual transmissions ranging from the T56 to T5's and even units in 1 ton trucks and have never seen a case where the fluid was the cause of the damage done to a unit as long as its the correct type (I.E. not putting 75-90wt gear lube in a T56) .
08-03-2008, 12:28 PM
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maybe it was not them, it was one of the T56 rebuild shops that i got alink to from here
but they said all they use is Mobile 1 ATF
just seems some places recommend synthetic Dex III and others synthetic manual fluid
but they said all they use is Mobile 1 ATF
just seems some places recommend synthetic Dex III and others synthetic manual fluid
08-03-2008, 07:58 PM
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Yah I heard bad things on here about using synthetic in an m6. If you do a search you may get a better answer why. I use Castrol ATF Dex 3 non-synthetic and I dont notice any negative effects as far as shifting in hot or cold weather. I have heard of some people that put different fluids in there trans and it being difficult to shift and get in gear. Especially in cold weather. Good luck!
08-03-2008, 08:52 PM
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Not all synthetics are bad, just a few which crossed over the idea to people that synthetic = bad.
Mobil 1 is an excellent fluid. After 100k and Mobil 1 although my reverse was a bit damaged for different reasons, the rest of the transmission looked babied. I rebuilt with the stage 1 kit and still use synthetics. I'm now using Penzoil, but have used Amsoil with good results too. I change every 30k miles and I really abuse this transmission, WOT shifts pretty much each time I drive it and taken down the track 200+ times since 05.
Mobil 1 is an excellent fluid. After 100k and Mobil 1 although my reverse was a bit damaged for different reasons, the rest of the transmission looked babied. I rebuilt with the stage 1 kit and still use synthetics. I'm now using Penzoil, but have used Amsoil with good results too. I change every 30k miles and I really abuse this transmission, WOT shifts pretty much each time I drive it and taken down the track 200+ times since 05.
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08-04-2008, 01:20 PM
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I have yet to see a single case of failure from using a different fluid than what comes from the factory as long as its similiar in weight and intended use .
08-06-2008, 12:53 AM
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