Quote:
Originally Posted by joe 1950
in my model A i used 600 wt ,which is what it calls for ,it’s available at snyder’s or brattens antiques ,also in my 50 cpe ,i use lucas engine oil supplement in the overdrive trans and diff 22 years no problem ,but i don’t drive them in the cold ,and i don’t use the lucas straight ,mix it 50/50 with 90 gear oil
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Might want to do some research on what the so called 600 or 600 wt lube is! It's normally SAE 140 gear lube (which is what Ford called for) repackaged. 600W was a brand name Mobil used for a steam engine oil. Mac's claims there "600w" lube has a viscosity index of 2270, which places it in the middle of SAE 140.