zach l 2 #1 Posted April 19, 2010 hi i just bought a 1973? 18 auto and was wondering if anyone knew what kind of transmission oil to put in it and trans filter part number?thanks Share this post Link to post Share on other sites
wh79d160 52 #2 Posted April 20, 2010 I think those were the early D series. If so, it should be a NAPA 1307 & 10w30 motor oil for the hydro. Check to make sure it isn't red, Someone could have put ATf in it @ some point. Go to the toro website & see if you can download a manual 4 it. Good luck. Tom, Perry ks. Share this post Link to post Share on other sites
Roger from southern Iowa 1 #3 Posted April 20, 2010 The NAPA 1307 filter and 10-30 oil is what my 18Auto took. Share this post Link to post Share on other sites
