| I vote for the fuel issue. Poor quality fuel is the major cause of low power, hard starting, and a bad smell from the exhaust. AND- it will ruin the injectors in the long run. I only buy fuel at high-volume, chain fuel stops to reduce the chance of getting a tank of poor quality fuel, the slightly higher price is well worth the protection. The stock LB7 has enough power to tow or haul anything legal with ease, providing the owner does his part by performing proper maintenance. |