Like the title says its about 99+ outside and my car feels likes it's towing a boat. A 36' at that. Just changed the transmission fluids and engine oil. Just don't know if thats normal.

 

well in the hot humid air you are going to make less power.

 

ugh im with ya on that one

 

I understand but my wifes old 89 cabrio didn't do it as bad as the FC.

 

And I mean VW cabrio

 

The heat index is based on air temperature and relative humidity. The engine will lose about 1% hp for each 10degF increase in air temperature. The engine will also lose a very small amount of hp due to the increased humidity. On the good side, high humidity helps protect against detonation.

If your old fluids were broken down and highly thinned out, the car may be a little slower with the new fluids because they are thicker. However, this should only make a slight difference. If you notice severe engine straining, then there may be something else wrong with the car.

 

ah, very good sir. beat me to it!

same reason that old carburetored cars made WAY more power when it was cold outside

 

Found out from Zak it was the cat converter causing to much back flow, replacing them with new exhaust from headers back, thanks guys.