Four Wheel Logic

Yes, ruthenium spark plugs can beat iridium in some engines on wear and cold starts, but iridium still fits more models and often costs less.

Yes, rusted rotors can be bad when rust is heavy or uneven, since it can cut braking grip and chew pads.

Yes, RT tires can handle light snow, but deep snow and ice call for 3PMSF winter tires or chains.

No, rotors with holes aren’t always better; they can clear water, yet quality blank rotors can stop just as well with fewer crack risks.

Yes, RWD trucks can work in snow with snow tires and added bed weight, but 4WD feels steadier on hills and ice.

Yes, ruthenium spark plugs can pay off with long intervals and tough engines when they match the OEM spec.

No, RWD cars in snow can struggle, but winter tires and smooth driving can make them workable on plowed roads.

Yes, run-flat tires can be worth it if you want flat-tire mobility and accept higher price and a firmer feel.

Yes, ruthenium spark plugs are good when they match your engine spec, giving steady spark and long wear at a higher price.

Yes, running boards are often a bolt-on install, but rust or drilling can turn it into a longer afternoon.