We use and abuse Costco jacks out at the shop. They last about 6 months. I always make sure the vehicle is on OTC jack stands before anyone gets under it. Costco guarantees the jacks for as long as I keep the receipt and maintain membership. I have lost count of how many of their jacks I have returned during the 12 years Costco has been in San Antonio. I used to buy Walker, Lincoln, and Hein Warner jacks. They cost 5 times more than the Costco jacks and have to be rebuilt every couple of years. I feel I am money ahead buying the cheap ones from Costco.
