I am recharging my ac ready for summer. Um......the caps on my car 92-95 does not say low or high. d16z6 is what i still have. I did a search but it was not sufficient for me to be sure.

Is it the bigger piping with a black cap?

 

the bigger opening is the low and the smaller opening is the high

btw the machine will only go on one way man

 

thanks