Clear oil dripping out of radiator, why?

yes improper install of gasket[s]can cause oil problems

Use paper towel or tissue. If not degraded (too old) it will be pink color For Automatic transmission. Brown to almost clear if recent oil change. Dark brown if Standard transmission. But if it's top, most likely Engine oil. Check for drips on the floor too.

transmission oil. check trans oil level and check on the side of radiator for trsnsmision leak on the trans line to and from radiator

Could be 2 problems. Some rear main seals leak with oil flowing out where trans joins engine. You should crawl under vehicle and look directly up from oil leak, If inside garage use a newpaper to catch current drip.

Gassy oil can be leaking fuel injector draining into oil pan. Sometimes dirty fuel injector will stay open and fuel pressure will continue to drain into motor after vehicle is off. Sometimes stuff like seafoam will clean injectors.

there is a cooler for the trans fluid that runs threw the f the radiator the cooler splits and trans pressure being higher while running pushes into the coolant how ever as it cools down the coolant pressure can push the coolant into the trans so see if the trans fluid looks like a straw beery milk shake if so try and keep flushing the trans until the fluid is clean and fresh if the trans makes it threw the coolant then you will need to flush the cooling system i use pinesol it breaks down the oil

get some on you finger and see what it is. Oil will be gold, trans fluid is red, and they will be oily, run water over your finger and see if it rinses off. water from the a/c is just plain water. Open the hood with engine running and see where the leak originates from.

You may be getting it from the oil or trans. cooler in the radiator. Get a donor radiator from pullapart.

Sounds like you need a new radiator, it is cracked inside causing trans fluid to leak into it, as for dripping may have bad fitting on the rad for the oil cooler lines for the transmission.

If its on the drivers side of the car close to the front check the transmission oil cooler lines. Especially if the fluid is redish in color. You will see them if you look up under the vehicle on the drivers side. There will be to black hoses running between the transmission and the radiator. If they are wet/dripping you found the leak.

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Check your oil dipstick and make sure it does not have coolant in it or whiteish stuff on it. This is indicative of a head gasket leak.