5W-40 vs 5W-30 A Comprehensive Analysis for Informed Oil Selection

0W means the oil flows like a zero weight when cold ( W is for winter), 5W like a 5 weight when cold, the 40 is flow when warm. Not much of a difference. FREE 5 point car check · EV Cables & Chargers. Back Engine Oils & Fluids · Engine ... Imperial vs Metric Tools · Pressure Washer Buying Guide · Wrench or ... 5W-40 oil stays thicker at high temperatures than 5W-30. If you live in a place with a particularly hot climate (Arizona, for example) using 5W- ... This is the reason for the evolution of 0w-30 and 0w-40 oils, however 5w-30 synth is thinner than all in the cold, near zero F, about 1/2 as ... 5w40 offers thicker, high-temperature protection for hot areas, while 5w30 flows better for colder climates and improves fuel mileage. For high mileage engines, ... One kind of multigrade oil is 5W30. The '5W' denotes the oil's flow characteristics in the winter ('W' stands for winter). Here, a lower number ... 5w40 is thicker/more viscous, and only when warm. So 5w40 is worse fuel economy etc. It's not a huge difference though. Selected 530W, 5 of 55 · Selected 520W, 6 of 55 · Selected 515W, 7 of 55 ... (30). SEE ALL REVIEWS. Click to go to all reviews. Reviews. Rating Snapshot. Select ... 15W - 75W, 15W - 40W, 10W - 15W - 25W - 40W, 10W - 15W - 25W - 40W, 7W - 15W - 25W, 7W - 10W - 25W, 20W - 40W, 10W - 30W, 10W - 20W, 10W - 20W, 7.5W - 15W, 5W - ... Excess amounts of oil consumed by an engine burning it can be addressed by using a thicker oil, a 10W-40 might not burn off as fast compared to ...