Almost forgot, the oil fill..... Unit came supplied with 20 ounce bottle. There's no way you're getting all that in there and then NOT having it leak out later when checking either dipstick (there's two). I put in 16 ounces of the SAE 30 oil that it was supplied with. Ran it for 3 or 4 hours and then changed it to Castrol GTX SynBlend 10W-40 but this time only added 15 ounces to get oil level correct on the dipstick line. Don't try filling more than 15 ounces.