A magnetic oil filter drain plug and/or an oil filter magnet add one more potential layer of engine protection. Do they work? Residue on the drain plug says yes, but it’s anyone’s guess with the oil ...

High diesel and crude oil prices may make headlines, but the cost of engine oil has risen, as well, making an extended-oil-drain strategy more appealing. Many newer engines already have longer oil ...

Regularly replace air filters every 30 to 90 days, or more often depending on the filter type and household conditions. Keep vents and the area around the outside unit clean and free of obstructions ...