clemsonfor
Super Member
Your just spending extra, even if in warrenty they cant tell you you have to use Kholer oil , although repairs related to lube may be easier to get if it was their oil and a warrenty claim arose.Since my little Toro ZTR has a Kohler engine, I'm using the Kohler 10W-30 oil. I asked my dealer who makes it and he said he didn't know. I'm curious, and of course, it's expensive oil, but to change once a year, I figure it's not bad. I don't think it's synthetic, but I can't say for sure. The manual does say, "Synthetic oils will provide better starting in extreme cold below -23C (-10F)." And no, I'm not kidding.:laughing: But I've never mowed my yard when the temperature was 10 below zero.:laughing: I couldn't believe that was in there.
Chances are is made by one of the few refineries in america. Prolly bottled right after the briggs oil, jd oil, castrol and valvoline oil or something all in the same bldg.