John c 79 #1 Posted April 26 So what's the prevailing opinion on the low/no zinc class SN oil in these old(er) kolher engines ? Share this post Link to post Share on other sites
ebinmaine 67,422 #3 Posted April 26 I don't use it. There are diesel oils that can be used. I was recommended to use Kinetix brand by two local small engine shops. Share this post Link to post Share on other sites
lynnmor 7,305 #4 Posted April 26 Why do you think Kohler sells the proper oil? 2 Share this post Link to post Share on other sites
ri702bill 8,316 #5 Posted April 26 (edited) Been using conventional Shell Rotella in all 4 stroke outdoor stuff for years. Straight 30 wt in the summer, 10-30 in the winter....... Edited April 27 by ri702bill 4 Share this post Link to post Share on other sites
kpinnc 12,005 #6 Posted April 27 3 hours ago, ri702bill said: Been using conventional Shell Rotella in all 4 stroke outdoor stuff for years. Straight 30 wt in the summer, 10-30 in the winter....... 2 Share this post Link to post Share on other sites
Bill D 1,916 #7 Posted April 27 (edited) Consider Honda Pro GN4 10W-30. It's a true SJ oil. My local mechanic runs it in his dirt track race cars and swears by it. Honda also sells a full synthetic oil, but for that price I'd buy Amsoil Zrod. Edited April 27 by Bill D 1 Share this post Link to post Share on other sites
bds1984 1,429 #8 Posted April 27 Fill it, use it, run it, change it, sleep well at night, and repeat. Maintenance is more critical that anything. 1 Share this post Link to post Share on other sites
