When you use 5W30 in a vehicle that recommends 5W20, the most immediate change is the viscosity of the oil when the engine reaches its operating temperature. The “30” in 5W30 …

In practical terms, oil viscosity affects engine start-up by determining how quickly oil reaches vital parts in colder conditions. Thinner oil, like 5W20, flows faster, reducing friction and wear …

O'Reilly Synthetic Motor Oil low friction formula helps improve gas mileage for long engine life and helps protect against rust, corrosion, startup wear, varnish build-up, and eliminates the need …

Shop for 5W-20 Oil in Oil Viscosity. Buy products such as Super Tech High Mileage Full Synthetic SAE 5W-20 Motor Oil, 5 Quarts at Walmart and save.

If your car requires a 5W-20 synthetic oil, Castrol offers a full range of options from synthetic to blend motor oil. Learn how your car can benefit today.

NAPA Full Synthetic Motor Oil is the ultimate choice for superior engine protection and performance. Its advanced formula, featuring synthetic base stocks, shields the engine against …

Formulated with highly refined, premium-quality synthetic blend basestocks that protect engines against damaging varnish deposits and contamination, the low-friction formulation helps …

Mobil 1 advanced full-synthetic motor oil 5W-20 utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.

Shell Helix Ultra SN 5W-20 Fully synthetic motor oil – The next oil generation for engine cleanliness. Today’s vehicles need a motor oil that keeps pace with their changing demands …

Castrol GTX Full Synthetic provides maximum protection to help fight the impact of severe conditions that can potentially shorten engine life. Tough driving conditions like idling on …