I don't have a 1845B book, but the 1845 book I have says 13 gallons refill and 15.5 total system.Thanks! I saw that about the 1845C but I couldn't find anything on the B. I put 10 gallons in, and its still not touching the site glass - I'll post an update after its full.
Been a few years since I worked on either but figured they were very close.1845 and b are the same
I have had mine for about 6/7 years, , little old diesel really starts easilyThanks guys - got it filled and bled. Took just short of 15 gallons.