On the 300SD it shows 3.2 LBS of R-12 on my sticker. You go on Johnson's freeze 12 site it shows 43 oz. as the conversion. As vstech said use the ester oil it recomends this on the site as well . Not in such a clear wording but it tells you that due to loss of oil from the change over you should replace it with ester oil. Buyer beware.

Drop in replacement...80% R134 !!!

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Experience : what you receive 3 seconds after you really needed it !!



86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes