Originally Posted by Yadkin
Read your owner's manual- it takes 6 quarts. What I do is put in a half-quart less, start the engine and let it idle for a minute to circulate the oil, then clean up my bench and work area. Then I check the oil level and pour in enough to get right in the middle of the correct range.
I just put in what the manual says and never look at the dip stick. If it says 6 qt's, put in 6 qt's. If your dip stick reads otherwise, it's the dip stick. Takes a while to soak oil into filter. Get air out etc. I would not trust the dip stick immediately after filling (a day later with over night cool down you'll get an accurate reading). Or just put in 6 qts.
Keep in mind these engines are rated for extreme grades. A little over or under won't hurt it.
If it said 5.8 qt's I'd probably dump in 6 qt's. You're talking a 1/4" it's not gonna make or break anything.