To help me with an allison cooler project I am doing, i would like to hear commentary from people who have experienced discontent in thier tranny's not coming up to temp quick enough, or running too cool in the winter. Do you also run too hot in the summer (over 200)? Also if you have an idea what could be done about it?

I've never had a problem. Due to lack of space in my garage, my truck sat outside all winter last winter. (won't happen this winter)

My truck has seen temperatures as low as -40 and windchills into the -60's. Of course I always warm it up a bit before I drive it, but I have never experienced a transmission too cold problem even though I had read about some of the conditions that can result.


It was an 03.



I am sure many of you haven't experienced -40. It is quite something. Your seats are like rocks. Your front end is so stiff that if it is slippery at all your truck will skid the front wheels instead of turning them making 4x4 almost a necessity to get rolling. Lots of gas vehicles will not start if not plugged in. Sound carries like you wouldn't believe in the cold crisp air. A 40% bottle or booze will freeze solid. And thats just the tip of the iceberg. http://www.dieselplace.com/forum/smileys/HiHi.gifEdited by: Max Power

Winter Fronts!





Mac http://www.dieselplace.com/forum/smileys/Embarrased.gif

I've never had a problem. Due to lack of space in my garage, my truck sat outside all winter last winter. (won't happen this winter)

My truck has seen temperatures as low as -40 and windchills into the -60's. Of course I always warm it up a bit before I drive it, but I have never experienced a transmission too cold problem even though I had read about some of the conditions that can result.


It was an 03.



I am sure many of you haven't experienced -40. It is quite something. Your seats are like rocks. Your front end is so stiff that if it is slippery at all your truck will skid the front wheels instead of turning them making 4x4 almost a necessity to get rolling. Lots of gas vehicles will not start if not plugged in. Sound carries like you wouldn't believe in the cold crisp air. A 40% bottle or booze will freeze solid. And thats just the tip of the iceberg. http://www.dieselplace.com/forum/smileys/HiHi.gif

Fourtunately, metal does not "feel" wind chills. I know all about the hard seats. I lived in Monanata for a while in the 90's at 7000 feet and 40 below was the norm at times with minus 50 not to uncommon along with day time highs of minus 20 or minus 25. Luckly, we rarely had any wind when it was cold. I used to use double block heaters, not to start it but to have it warm up and throw heat quicker. With double heater plugged in while warming up you could get to near full engine heat in about 10 minutes or so. The coldest feeling place I have ever been is Rapid City SD in winter. I have seen it minus 30 with 50mph+ winds!! It was so bad one winter that we held up in town for a extra day to wait for wind to die off before heading back to Montana thru Wyoming and still hit a near white out for nearly 100 miles before it cleared off. If was so bad my air cleaner plugged up with snow and I had to clear it and disconnect snorkle to continue on. Those days were something! I had a gas J20 that I started on a dare at minus 38 without heat. It lite in about 10 seconds and never stopped. My gas burb would reliably start at minus 30 if need be but I usually used heat as above to get quick warmups. I never had problem with wheels skidding with my vehicals anyway. I had a front wheel drive toyota they thrived in that cold weather though and used it daily. It could be minus 40 and after a breif warm up it ran like it was 60 outside. Edited by: snoman

and....your transmission....?

and....your transmission....?


I added a bit of kerosene to my automatic tranny fluid to thin it in cold weather (about 4 to 8 oz depending on vehical size, it would evaporate out when weather got warmer.) and I used a radiator/grill bra on all my vehicals to limit cold air flow through engine compartment and aux coolers and they warmed up quicker too with them. I never ran them without one in weather that cold. The burb had a aux engine oil cooler and a aux tranny cooler too and was slower to heat without one.