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SVTPerformance's Chain of Restaurants
The Greasy Spoon
John Deere Hy-Gard in Manual Trans?
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<blockquote data-quote="UnleashedBeast" data-source="post: 14662506" data-attributes="member: 112023"><p>I have zero experience or knowledge of this. However, after some investigation, I would not advise it. </p><p></p><p><strong><a href="https://www.deere.com/en_US/parts/batteries_and_fluids/oils_and_lubricants/hygard_hydraulic/transmission_oil/transmission_oil.page" target="_blank">John Deer HyGard</a></strong></p><p></p><p>Viscosity @ 40°C................... 59 cSt</p><p>Viscosity @ 100°C................. 9.4 cSt</p><p>Viscosity index.................. 140</p><p>Pour point......................... -40°C</p><p>Flash point......................... 227°C</p><p></p><p>Viscosity index is low, therefore in cold weather, the lubricant will be very viscous. It won't shift very well until the transmission warms up. Viscosity @ 100*C is also higher than non-LV Amsoil ATF which is best suggested for Tremec. You can see how less viscous Amsoil is at cooler temps, with a higher VI.</p><p></p><p><strong><a href="http://www.amsoil.com/shop/by-product/transmission-fluid/automatic/signature-series-multi-vehicle-synthetic-automatic-transmission-fluid/?code=ATFQT-EA&zo=1859448" target="_blank">Amsoil ATF</a></strong></p><p></p><p>Viscosity @ 40°C................... 38.5 cSt</p><p>Viscosity @ 100°C................. 7.5 cSt</p><p>Viscosity index.................. 165</p><p>Pour point......................... -53°C</p><p>Flash point......................... 234°C</p><p></p><p>Same situation as Amsoil MTF Syncromesh. Even though the 100*C viscosity is close to John Deer, look at how much less it thickens as it cools (compare 40*C). VI is also far better. Best lubricant from Amsoil for the Getrag MT-82.</p><p></p><p><strong><a href="http://www.amsoil.com/shop/by-product/transmission-fluid/manual/manual-synchromesh-transmission-fluid-5w-30/?code=MTFQT-EA&zo=1859448" target="_blank"></a></strong></p><p><strong><a href="http://www.amsoil.com/shop/by-product/transmission-fluid/manual/manual-synchromesh-transmission-fluid-5w-30/?code=MTFQT-EA&zo=1859448" target="_blank">Amsoil MTF Synchromesh</a></strong></p><p></p><p>Viscosity @ 40°C................... 48.3 cSt</p><p>Viscosity @ 100°C................. 9.7 cSt</p><p>Viscosity index.................. 190</p><p>Pour point......................... -46°C</p><p>Flash point......................... 218°C</p><p></p><p>Your street car transmission will shift far better hot or cold with either lubricant listed above, than the John Deer transmission fluid you are inquiring about. We also have no idea what additives are used in the lubricant. They may not work well with metal types used in your street car. It's best to stick with what's proven.</p></blockquote><p></p>
[QUOTE="UnleashedBeast, post: 14662506, member: 112023"] I have zero experience or knowledge of this. However, after some investigation, I would not advise it. [B][URL="https://www.deere.com/en_US/parts/batteries_and_fluids/oils_and_lubricants/hygard_hydraulic/transmission_oil/transmission_oil.page"]John Deer HyGard[/URL][/B] Viscosity @ 40°C................... 59 cSt Viscosity @ 100°C................. 9.4 cSt Viscosity index.................. 140 Pour point......................... -40°C Flash point......................... 227°C Viscosity index is low, therefore in cold weather, the lubricant will be very viscous. It won't shift very well until the transmission warms up. Viscosity @ 100*C is also higher than non-LV Amsoil ATF which is best suggested for Tremec. You can see how less viscous Amsoil is at cooler temps, with a higher VI. [B][URL="www.amsoil.com/shop/by-product/transmission-fluid/automatic/signature-series-multi-vehicle-synthetic-automatic-transmission-fluid/?code=ATFQT-EA&zo=1859448"]Amsoil ATF[/URL][/B] Viscosity @ 40°C................... 38.5 cSt Viscosity @ 100°C................. 7.5 cSt Viscosity index.................. 165 Pour point......................... -53°C Flash point......................... 234°C Same situation as Amsoil MTF Syncromesh. Even though the 100*C viscosity is close to John Deer, look at how much less it thickens as it cools (compare 40*C). VI is also far better. Best lubricant from Amsoil for the Getrag MT-82. [B][URL="http://www.amsoil.com/shop/by-product/transmission-fluid/manual/manual-synchromesh-transmission-fluid-5w-30/?code=MTFQT-EA&zo=1859448"] Amsoil MTF Synchromesh[/URL][/B] Viscosity @ 40°C................... 48.3 cSt Viscosity @ 100°C................. 9.7 cSt Viscosity index.................. 190 Pour point......................... -46°C Flash point......................... 218°C Your street car transmission will shift far better hot or cold with either lubricant listed above, than the John Deer transmission fluid you are inquiring about. We also have no idea what additives are used in the lubricant. They may not work well with metal types used in your street car. It's best to stick with what's proven. [/QUOTE]
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