Sears offers the EcoTech Bar & Chain Chainsaw Oil 32-oz. Bottle, model no. BC3200101, for $3.49. Choose in-store pickup to dodge the $6.99 shipping fee. That's a buck below our mention from two weeks ago, $6 off list, and the lowest total price we've seen. It works in temperatures from 10°F to 104°F, and purportedly reduces heat and wear.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase.