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**Deerhunter88** · 12-03-2014, 01:34 PM

What's the range a Transmission should run at?

Truck is a 2007 Silverado crew cab. I just picked up a tractor and boat so I want to make sure my trans is running as it should while hauling these loads. I been putting off having a filter and fluid changed for sometime now. 140,000 miles. Never touched the fluid or filter.

**oOslikOo** · 12-03-2014, 01:43 PM

I'm guessin half ton? How big is the tractor and boat?

Pullin 15k or more with either of my trucks I will see above 200 degrees
In the summer in traffic. At highway speeds you'll be fine. Both of mine are 3/4
Tons. One is an 01' gas job, other is 13' Duramax.

**Deerhunter88** · 12-04-2014, 07:19 AM

tractor is 30 hp Kubota 3,000 pounds and boat is 20 foot flat boat. No real serious weight.

**Gottagofishin** · 12-04-2014, 10:02 AM

My 2013 F150 runs at between 190 and 195 towing 6000lbs on the highway. Around 200 in town with the extra shifting.

**Fishtexx** · 12-04-2014, 10:38 AM

Start paying attention at about 210 degrees, above that I'm slowing down or stopping to allow trans fluid to cool. If you are consistantly bumping that 210 threshold, regular trans fluid changes and an auxilary trans cooler need to be concidered.

**ROCKSPRINGS HUNTER** · 12-08-2014, 05:08 PM

2008 gmc serria 4X4. w/ towing package.
Towing ~4000-5000 lbs in the hill country trans temp hits low 200's. every now and then it will hit 210.

**JFolm** · 12-08-2014, 07:52 PM

Look into a trucool 40k Trans cooler.

**Fishtexx** · 12-08-2014, 08:39 PM

^^This^^ Heat is the #1 auto trans killer. An aux cooler is cheap insurance if you tow, especially in hills/mountains. Also, only tow in OD on flat ground and not too heavily loaded. Better to downshift and burn the extra gas than burn up the trans!

**txflats** · 12-08-2014, 10:17 PM

Should run around Coolant temperature since it runs through the radiator. I run a cooler with a small electric cooling fan.

**Ditto** · 12-09-2014, 02:18 PM

2014 GMC 4x4 half ton pulling a 22' center console. Temps are 195-200 range during the summer.

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12-03-2014, 01:34 PM	#1
Deerhunter88 Registered Users-pm+ Join Date: Aug 04 2013 Age: 35 Posts: 324 Rep Power: 1591497	Transmission Temp. What's the range a Transmission should run at? Truck is a 2007 Silverado crew cab. I just picked up a tractor and boat so I want to make sure my trans is running as it should while hauling these loads. I been putting off having a filter and fluid changed for sometime now. 140,000 miles. Never touched the fluid or filter.

12-03-2014, 01:43 PM	#2
oOslikOo Registered Users-pm+ Join Date: Sep 21 2010 Posts: 5,935 Rep Power: 21484140	I'm guessin half ton? How big is the tractor and boat? Pullin 15k or more with either of my trucks I will see above 200 degrees In the summer in traffic. At highway speeds you'll be fine. Both of mine are 3/4 Tons. One is an 01' gas job, other is 13' Duramax.

12-04-2014, 07:19 AM	#3
Deerhunter88 Registered Users-pm+ Join Date: Aug 04 2013 Age: 35 Posts: 324 Rep Power: 1591497	tractor is 30 hp Kubota 3,000 pounds and boat is 20 foot flat boat. No real serious weight.

12-04-2014, 10:02 AM	#4
Gottagofishin Roll Tide! Join Date: Dec 17 2005 Location: Bayside Doublewide Posts: 15,759 Rep Power: 21495703	My 2013 F150 runs at between 190 and 195 towing 6000lbs on the highway. Around 200 in town with the extra shifting.

12-04-2014, 10:38 AM	#5
Fishtexx Registered Users-pm+ Join Date: Jun 29 2004 Age: 60 Posts: 2,985 Rep Power: 21483466	Start paying attention at about 210 degrees, above that I'm slowing down or stopping to allow trans fluid to cool. If you are consistantly bumping that 210 threshold, regular trans fluid changes and an auxilary trans cooler need to be concidered.

12-08-2014, 05:08 PM	#6
ROCKSPRINGS HUNTER Registered Users-pm+ Join Date: Dec 13 2008 Posts: 405 Rep Power: 6861354	2008 gmc serria 4X4. w/ towing package. Towing ~4000-5000 lbs in the hill country trans temp hits low 200's. every now and then it will hit 210.

12-08-2014, 07:52 PM	#7
JFolm Unorthodox Millenial Join Date: Apr 22 2012 Location: Port Neches Age: 31 Posts: 8,101 Rep Power: 21485727	Look into a trucool 40k Trans cooler.

12-08-2014, 08:39 PM	#8
Fishtexx Registered Users-pm+ Join Date: Jun 29 2004 Age: 60 Posts: 2,985 Rep Power: 21483466	^^This^^ Heat is the #1 auto trans killer. An aux cooler is cheap insurance if you tow, especially in hills/mountains. Also, only tow in OD on flat ground and not too heavily loaded. Better to downshift and burn the extra gas than burn up the trans!

12-08-2014, 10:17 PM	#9
txflats Registered Users-pm+ Join Date: Aug 12 2004 Age: 55 Posts: 875 Rep Power: 3259356	Should run around Coolant temperature since it runs through the radiator. I run a cooler with a small electric cooling fan.

12-09-2014, 02:18 PM	#10
Ditto Registered Users-pm+ Join Date: Apr 18 2005 Location: Northwest Houston Age: 58 Posts: 1,568 Rep Power: 7694789	2014 GMC 4x4 half ton pulling a 22' center console. Temps are 195-200 range during the summer.

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