Dragontize

My mechanic verified that there is an oil leak in the rear seal of the engine block, he would have to take out the transmission to replace the seal. I asked him that since he had to pull out the transmission, would it be good to change all the seals.. he advised he does not see any other leaks... and it it does not leak, dont replace them... the car has 165k miles on it... should I insist on replacing all the seals?

I lost my AC Power adapter for my nordictrack AudioRider u300, does anybody know the output of the VDC and Amps?

I'm having an issue with the AFCI Circuit Breaker. It would randomly trip (once every month or so), It worries me cause there are not much items that are in the bed room except for a computer and APC backup power supply. It tripped twice while I was on the computer and a couple of times when I was out of the room with nothing in use. How should I approach this issue to troubleshoot the problem?

For awhile, i've noticed that the radiator fan never comes on.. the car does not over heat, coolant is normal i guess.. it would go below the min about every 4 months and i would re-fill it. I would have the car on idle for 15 min and the fan would not come on.. i remember the fan on my ford would come on in less than 5 min of idling.. is there a way to test the fan to make sure it is working and about the coolant going to max to min line in 4 months, is that normal? I do drive 100 miles (50 miles one way) to work... Thanks in advance. Cheers!

I drive about 50 miles one way to work, and this other day, I smelled something burning when I got home, checked and found that the engine oil is very low. The gasket for the oil filter was worn and caused a leaked. Anyways, I filled up 2 qts of oil before it hit the minimum level. The check engine light never came on.. is it suppose to come on.. and if so, is there a way to test the light to make sure it is working.