hey I have a 06 f250 6.0. today i have to drive 900kms. At about 400 in my truck kinda jerked a bit and a abs light came on. I fueled up, restarted the truck and it was gone. a little bit down the road it came back. then at about 800km in i got a cel. no smoke no smells no change in anything at all just the lights. WTF is going on? I have another 800km to go tomorrow! please help! ps i should add that i just had it at the dealer today for a oil and filter change and threw a fuel additive in there. could that be the problem?