was out on the road in construction zone supposed to be 45 speed limit everyone doing 55 ,I gots the cruise set rpm is steady on tach and speedo is swinging from 40 to 60 as it pleases with no set pattern ,some times its hi some times its low, at first I thought it was the budda but pacing the wif with cruise set in truck it was obvious sumpthin is fu, cleared the speed zone and got er up to 70 and it was fine the next 100 miles wtf ,have not noticed this in city driving. any thoughts :dunno alien abduction , karma , bad seafood ???