forevercrow

Hello all, I have a 91 2.5 turbo with 5sp, the question I have is could the trans cooler buit into the radiator be used as an oil cooler for the engine, any input would be great.

yogi_123rd

Most Chysler models typically have the trans oil coolers built into their radiators. The oil/water circulate in seperate areas. Look for two oil lines from the trans going to the base of the radiator.

forevercrow

i have located the fittings for the trans lines, but how will the trans cooler work as an oil cooler, im not sure what the normal temp of the oil is, would the trans cooler drop the oil temp enough to make a difference?

RV&SAIL

What ever happened to your Engine Oi Cooling project...

denisond3

RV&SAIL: I dont know what became of his oil cooler project. I have had oil temp gauges on several of my vehicles, and wouldnt bother with an engine oil cooler for any street driving use. On my 84 Plymouth Horizon the engine oil temp (measured at the top of the oil pool in the crankcase pan) would get to 200f in summer weather, and never went much higher - even when I had the chance to run it up to about 100 mph for a few miles in Michigans U.P. On my air cooled BMW R69 cycle, it would take about 20 minutes of steady running to stabilize at 240f @ 60 mph in summer, 220f in winter. Once I was able to run the bike at 100 mph for over an hour and the oil temp got up to 290f - and the air temp was close to 100f at the time. On my vintage motorhome the engine oil temp will get to 260f when running 60 mph in S. Texas on a sunny summer day, where the air is 100f in the shade, and the pavement is hotter. The hottest I ever saw the motor oil in the motorhome was when grinding up through Loveland pass (10,500 ft) in August - where it reached 290. Two hours of the gas pedal floored! (My tranny oil temp got up to 250 on that climb, which is the hottest it has ever been.) Since then I added an auxillary cooler for the tranny fluid to the motorhome since we now sometimes tow a trailer with a car on it. But I cover the cooler if we use the RV in cool weather, or the tranny fluid wont get warm enough to boil out residual water.