1862 Oil Usage
 

New to me 1862. Oil was full when I started blowing leaves. Finished in one hour. Next day checked the oil and at bottom tip of dip stick. No oil smoke out the exhaust. Plugs were not oil soaked. No oil leak under tractor in garage. No oil in air filter. Where did the oil go? Was going do a compression test but could not find my tester. I may have been burned. All replies appreciated and thanks in advance. Have a great day. Pics. attached.
Bob

What is metal box above the fuel filter?

Is the oil brand new? I've seen where old oil that has a good deal of contamination with fuel or moisture dilution in it will evaporate after a good hot run showing a lower dipstick reading. Before you judge this engine too critically, I would change the oil and filter, using low ash SAE30 if not operated in the extreme cold, or 10W30 if used in really cold conditions. If it still uses oil after the change, then further investigation is warranted. None of my Kohler Magnum twins leak or use any appreciable amount of oil, even after thousands of hours of use.

Ditto, the only other option is it lost a ring and/or is pushing vapor out the breather at a high rate (but you mentioned the air cleaner looks good).

Vacuum fuel pump:beerchug:
Smell your oil, if it smells of gas, change it quick, otherwise fill it to the full line and run it again checking it to see if it indeed is "using oil"
Normally they don't consume that much oil without a tell tale clue.:bigthink:

1862 oil usage
 

Thanks to all that replied. Oil was very clean and to the full mark. No smell of gas in oil. Will fill it with oil and try it again but it will be a couple weeks. Just had eye lid surgery. George I went down and took another look at that piece above the fuel filter and this time I located a vacuum line going into the rear of it. You people are so smart. Thanks again and have a great day.
Bob

So, with these Magnum twins, if you are running 10w30 or thinner oil, consumption will be higher and is considered normal per factory documentation.

FWIW, this is from my 782 owner's manual.

1862 Oil Usage
 

The oil was at the full mark when I checked it after it was delivered. Oil was clean looking and maybe it was just changed. Don't know what weight oil was used. Will add some 30 wt. oil when I can and give it another work out. The day I used it the temp was in the 70's. Hope it just had the wrong wt. oil in it. Going to look for my compression gauge again today. Hard to tell what I have done with it. Have a great day.
Bob

I run SAE30 when I can for this reason. Little harder starting in the winter if you don't have a strong battery.

1862 Oil usage
 

Found my compression gauge last week. Checked the compression with throttle and choke fully open. Bad news. Looking at tractor from front of frame, right cylinder read 70 psi and left cylinder read 65 psi. It took me 1/2 day last week to get some of the tins off. I don't think much of the way they are attached. Got the fuel pump tin off, the front and bottom tins off but not the other side tin. Looks like you have to take the oil lines loose to get this side tin off. Is it possible to take the heads and jugs off with engine still in frame. Just want to re-bore , new rings and new valves seated. Thanks for reading and have a great day.
Bob