The SM-420 holds about 6.25 pints of SAE 90 Mineral Oil.

Here's what I use...

https://www.tractorsupply.com/tsc/p...-all-mineral-90-transmission-fluid-2-gal

Mike B smile


Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD