I have been using the conversion factor of 0.56 for R12 to R152A conversions. The 300E is on it now as the evap leaks. I only shot in 20oz last I recall as it holds just over 2lbs of R12 (2.1?). It did low to mid 40s last summer. 300psi on the high side is way high on 152A, even if it is 100F outside. It should have pressures very similar to R12.

One of my E23s is also on it as I wanted to see how it performed on a fresh system. Same temps as the 300E, car is black on black.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]