Has anybody tried the top end oil change yet ?I tried it today, well I started it but rain stopped me. I was going to just keep taking out and putting in until I used the whole gallon of oil. I was a little concerned though, in total i pulled out 1.5 quarts but ended up putting 2 in. I checked my dipstick both at the beginning and the end, same. didn't bother to check the level in the top before, made sure it was filled in the end though. Anybody had this experience, think I might have been low in the top. Also oil smelt burnt, my dipstick oil smells brand new.