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2012-2013 Boss 302 Mustang
Trans Issues.....
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<blockquote data-quote="UnleashedBeast" data-source="post: 10833759" data-attributes="member: 112023"><p>A <strong><a href="http://cdn.mustangevolution.com/forum/images/uploads/2011/03/tsb-11-03-18.pdf" target="_blank">TSB</a></strong> was released on your transmission requiring a fluid change. This horse has been beat to death in more than one thread, and synchromesh was the first solution.</p><p></p><p>Here are some posts you must read. </p><p><strong></strong></p><p><strong><a href="http://www.svtperformance.com/forums/2011-mustangs-354/740307-attention-mt-82-victoms-7.html#post10381542" target="_blank">Amsoil MT-82 post #1</a></strong></p><p></p><p><strong><a href="http://www.svtperformance.com/forums/2011-mustangs-354/740307-attention-mt-82-victoms-7.html#post10464859" target="_blank">Amsoil MT-82 post #2</a></strong></p><p></p><p><strong><a href="http://www.svtperformance.com/forums/10495806-post187.html" target="_blank">Pennzoil MT-82 post #1</a></strong></p><p></p><p>Here is a good link, and contains a VOA and UOA of the different OEM fluids used in the MT-82. </p><p></p><p><strong><a href="http://www.allfordmustangs.com/forums/2011-mustang-talk/268693-official-2011-mustang-manual-transmission-rough-shifting-thread-60.html#post2426671" target="_blank">Post #900</a></strong></p><p></p><p>MT-82 factory fill is a heavy 30 grade/ almost a light 40 grade lubricant (cSt 12.5 - used)</p><p>XT-11-QDC is a light 20 grade lubricant (cSt 6.28 - virgin) <---- same viscosity of the newer lighter viscosity ATF</p><p>Amsoil Synchromesh is a light 30 grade lubricant (cSt 9.6 - virgin) <---- best compromise for noise, anti-wear, and shifting performance.</p><p></p><p>This is a big difference in viscosity, shifts will be easier, noise will increase.</p><p></p><p>IMO, the whine noise is from using a fluid with decreased viscosity. It naturally allows for more gear noise. Ford may have attempted to use a heavier lubricant to reduce gear noise, and had bad results with shift grinding.</p></blockquote><p></p>
[QUOTE="UnleashedBeast, post: 10833759, member: 112023"] A [B][URL="http://cdn.mustangevolution.com/forum/images/uploads/2011/03/tsb-11-03-18.pdf"]TSB[/URL][/B] was released on your transmission requiring a fluid change. This horse has been beat to death in more than one thread, and synchromesh was the first solution. Here are some posts you must read. [B] [URL="http://www.svtperformance.com/forums/2011-mustangs-354/740307-attention-mt-82-victoms-7.html#post10381542"]Amsoil MT-82 post #1[/URL][/B] [B][URL="http://www.svtperformance.com/forums/2011-mustangs-354/740307-attention-mt-82-victoms-7.html#post10464859"]Amsoil MT-82 post #2[/URL][/B] [B][URL="http://www.svtperformance.com/forums/10495806-post187.html"]Pennzoil MT-82 post #1[/URL][/B] Here is a good link, and contains a VOA and UOA of the different OEM fluids used in the MT-82. [B][URL="http://www.allfordmustangs.com/forums/2011-mustang-talk/268693-official-2011-mustang-manual-transmission-rough-shifting-thread-60.html#post2426671"]Post #900[/URL][/B] MT-82 factory fill is a heavy 30 grade/ almost a light 40 grade lubricant (cSt 12.5 - used) XT-11-QDC is a light 20 grade lubricant (cSt 6.28 - virgin) <---- same viscosity of the newer lighter viscosity ATF Amsoil Synchromesh is a light 30 grade lubricant (cSt 9.6 - virgin) <---- best compromise for noise, anti-wear, and shifting performance. This is a big difference in viscosity, shifts will be easier, noise will increase. IMO, the whine noise is from using a fluid with decreased viscosity. It naturally allows for more gear noise. Ford may have attempted to use a heavier lubricant to reduce gear noise, and had bad results with shift grinding. [/QUOTE]
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