08 Honda Accord four-cylinder automatic transmission no lights no codes no signs of burning oil or overheating. Purchased a month ago from a private seller 125,000 miles change the oil added engine coolant. They were both low for days later both were low again no signs of smoke moving from exhaust. No signs of leaks no signs of foam under the oil cap or radiator cap. Not sure what’s going on any input or ideas would be greatly appreciate it. Thank you.
They were both low for days later both were low again
If your oil and coolant levels are dropping they are either leaking or burning. There are no other choices.
no signs of smoke moving from exhaust.
That doesn't mean you're not burning oil.
No signs of leaks no signs of foam under the oil cap or radiator cap.
Have you pressure-tested the cooling system or used UV dye to look for leaks? Tested the head gasket?
https://www.youtube.com/watch?v=LYzTyTlnsr8
https://www.youtube.com/watch?v=rDuGeQnMOzk
https://www.youtube.com/watch?v=QA7KVQq9vKA
Thank you I’ll do some testing and see what happens. I’ll keep you posted