JC-Whitney sells some heavy guage 2/0 jumper cables. They're pretty expensive as jumper cables go so I thought I'd ask if anyone has ever had any luck jumping a diesel with cables. (I know the cheapo wal-mart ones dont work, they just get warm) I want them mostly for starting tractors and what not, but also should the need arise it would be nice if I could get a jump from another car if I needed it.