oil in radiator

You may want to keep a really close eye on it. The longer you run it the harder it will be to get cleaned out. You should try flushing the radiator at the very least once with dawn dish soap. Drain radiator completely add about a cup of soap fill with water run the truck to operating temp then remove small line from top of thermostat housing put water water house in radiator and let it run until the water is clear out of the small line you removed

 

I have 08 Volvo with an isx in it. Noticed oil in my coolant on friday when i parked. Its in now getting the oil cooler replaced.Should be done monday sometime. Not an expensive part just time consuming removing eveything and flushing oil out properly. Was quoted $2000. So we'll see on monday i guess.Thats my xmas gift to myself.Lol

 

check your transmission fluid level.

Tranny cooler is my guess, I had sludgy oil in my coolant and turns out my tranny was bone dry on my 2003 FL columbia

 

Does the trans use coolant to cool the fluid?

 

Yes..... if it has a tranny cooler, some of the low torque ones dont use one. My rtlo 16918b did.

 

I know they all have coolers most dont use coolant. The question was meant for the original post.

 

And most of the time when it goes bad you get coolant in the trans because the oil pressure in a trans is low and hot pressurized coolant will go the opposite way, say if the oil cooler on the motor goes out

 

Most of the time didn't save me from frying a 10000 dollar transmission, was the opposite in my case..... worth a finger dip to be safe.

 

Its pretty easy to tell weather its coolant or air cooled. The cooler is either in the trans on top of the trans or under the Ac condenser. Ive been fixing semis for a good spell and if you paid 10g's for a trans it must be one bad dude. Regardless the oil cooler on the trans mission is much lower pressure than coolant or engine oil pressure. Ive seen many transmissions fill with coolant from the cooler going bad. And more radiators full of oil from the cooler going bad than that. I'm not here to argue with you but if you want I can advise you on plenty of things. I see Yiure been a trucker for four years. Cool. Ive been fixing them longer and work on multiple problems on multiple models from multiple years. When you have 40 lbs of engine oil pressure and a max of probably 12 in the radiator, depending on what radiator cap he is using, oil will go into the coolant very easily. Now the trans has what a max oil pressure of 6 maybe 7 compared to the coolant at operating temp with a higher pressure, in most cases, the result is, as I've seen many times your trans starts leaking coolant out of the shift top although rare it could be the transmission cooler but being that he has a series 60 Detroit most likely the trans is air cooled.