MrClean

After my last oil change, I noted where the oil level was on the dipstick, and at 3000 mi, I added oil to get it back to where it was and measured that I had to add 8 or 9 ounces to get it back, so it had consumed that much in 3000 mi.
The Moroso AOS caught ½ an ounce in 600 miles. so extrapolating, that's 2.5 ounces in 3000 mi, leaving ~ 6 oz unnacounted for. Now I know the Moroso doesn't catch it all, so some of the used oil got past it and burned in the combustion (say ~1 oz), leaving ~5 oz.
Is that remaining ~5 oz normal oil consumption? Has anybody else noted their oil level between oil changes dropping by ¼ quart?

theedge67

That is totally 100% normal consumption. More oil actually makes it past the rings inside the cylinder than gets sucked through the breather hoses.

I don't know what Ford's policy is currently, but a few years ago they would not do anything about an engine burning oil unless it was more than 1qt per 1000 miles.

I have a Saturn that LOVES oil. It has used about 4 quarts per 5000 miles for the last 50K miles, and it is still running strong at nearly 100K total miles. A little oil consumption is not going to hurt anything as long as you don't let it get too low.

karman

+1
That's kinda why the dipstick has a safe range of almost a quart on most cars.