Which Direction to Loosen Wheel Lug Nuts?

[DiDerek]

For passenger cars, the wheel lug nuts loosen to the left (counterclockwise) and tighten to the right (clockwise). For heavy-duty trucks, the left-side wheel follows "left-tighten, right-loosen," while the right-side wheel follows "right-tighten, left-loosen." To loosen a passenger car's lug nuts, turn counterclockwise: place your left hand toward the wheel center and lift the wrench upward with your right hand. Truck lug nuts differ by side—left-side nuts have reverse threads (tighten by turning opposite the rolling direction), while right-side nuts have standard threads (tighten by turning in the rolling direction). Additional tips: 1. Lug nut tightening technique: Since tires are secured by five nuts, first install four diagonally before adding the fifth. Maintain consistent turns per nut to ensure even force distribution. 2. Rust prevention: Use solvent-free paint for vibrating machinery; opt for non-oxidizing impregnating varnish like epoxy-urethane or unmodified epoxy. When using melamine alkyd varnish, adjust curing to slightly above 130°C (e.g., 135°C) for over 180 minutes, strictly adhering to specifications.