murphy is my truck Posted September 16, 2019 Report Share Posted September 16, 2019 1983 nissan datsun 720. murphy has a standard 5 speed in him and a sealed rear diff. it is about time for a trans oil change and diff flush but i dont for the life of me know how much gear oil i will need... does any one know the case volumes for the trans and rear diff. Quote Link to comment
datzenmike Posted September 16, 2019 Report Share Posted September 16, 2019 Transmission: 2 liters G-L 4 80w90 or equivalent. Must be copper alloy or 'yellow metal' safe or compatible. Differential: less than 1 1/2 liters GL-5 80w90 for below 100F and 140 for constant temperatures above 50F and to well over 100F. Or equivalent in synthetic. Change every 30K miles. The drain plugs have magnets on them so wipe clean so you can check it next change. A warning about synthetic. It tends to seep past old seals and gaskets. 1 Quote Link to comment
murphy is my truck Posted September 17, 2019 Author Report Share Posted September 17, 2019 thank you for the information 1 Quote Link to comment
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