I have a 2001 honda acord it is has extreme power loss (could hardly make it up the hill)?

I have a 2001 honda acord it is has extreem power loss (could hardly make it up the hill). This happened the day after topping of the oil with 5w20 (as recommended) the top of befor this one i used 5w30 (manule said this was ok if not optamal). Right after teh most resent oil top of teh car had tubble starting, was fine for a day and then had this power issule.

I have looked to see if there's any sluge build up but i can't see any on teh dip stick or in the engin when i look in.

anybody have any suggestions of what it could be and how i could test for it.

It could be the transmission. That particular generation of the Honda Accord is notorious for transmission problems.

Not sure man do transmission fluid change from honda fluid. Also do a spark plug change and aim for oil in between the lines of the dipstick and change the Air Filter that help a lot too and if that doesn't help I'm not sure what is the problem

If the oil viscosity were the problem, mine would've quit a few months ago. It isn't the oil.