I was looking for an oil dip stick on the internet and found Kats. It works very well to heat up my oil on my cub cadet tractor when temperatures are below 50 degrees. The dip stick heater heats up very quickly and warms up the oil in a very short time. So far I used it twice and made starting the tractor so much easier. The stick is not flexible so it will insert a few inches into the oil case. It s enough to heat the oil on a 19hp engine. I recommend this dip stick oil heater

Received this, it was in a box too small and was bent slightly to make it fit. Straightened it, placed it in dipstick tube and plugged it in. Immediately there was crackling and smoking, the top of the unit became red hot. Unplugged, tried to pull it out and the plastic top separated (melted) from the stick and came off in my hand. Pulled out the smoking stick with pliers; only half came out as the unit was internally shorted running 120 vac through the dipstick tube and melting the rod in half. Still have not retrieved the bottom of the rod from the oil pan.