How To Check Oil in Koehler

Ron.

The right way is to remove it mechanically. However, if time is money, then here's how I do it.

Run Mobil 1 in it for a couple of hours. Change oil and filter. Keep doing this until the sludge is gone. Note, the last time you change oil it will remain clear for a couple of hours and then start turning color again. That's perfectly normal.

The reason this technique works so well is that the base stock for Mobil 1 is actually an industrial solvent. If you continue to use Mobil 1, no sludge will form.

I use 15w50 Mobil 1 in my lawn tractors mowing 2 acres at least twice a week, all summer.

I only change oil at the end of the season (once annually).

This spring my 5 year old Koehler was getting a new spark plug. While out, I shone a light into the spark plug hole at the cylinder wall. I COULD STILL SEE THE MANUFACTURER'S CROSS HATCH HONE MARKS ON THE WALL. Say what you want about oil. The proof is in the pudding.

Mark

As I was telling the buyer how clean Mobil 1 kept the engine, he was skeptical. So I pulled a valve cover. The inside of the cover was clean enough to do brain surgery on. The guy could not peel off the Franklin's fast enough.

I'm sure you know about Mobil 1's test where they bought 25 car & truck engines, ran them 250k miles, tore them down, and did not find one part that was out of spec. Yes, even the cylinder bores were in spec for both size and taper.

I have lots of engines around here. Every one runs Mobil 1.

Mark