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Engine Protection Oils

Engine protection oils are essential for maintaining the performance and longevity of your vehicle’s engine. Designed to keep engines running smoothly, these oils help ensure optimal operation, whether you’re commuting daily or heading out on a road trip. Discover a wide selection of engine protection oils at Costco, where quality and value come together to help keep your engine in top condition mile after mile.

Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart 4-pack
Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart 4-pack
Rated 4.8 out of 5 stars based on 2994 reviews.
(2994)
Kirkland Signature 0W-20 Full Synthetic Motor Oil 5-quart 2-pack
Kirkland Signature 0W-20 Full Synthetic Motor Oil 5-quart 2-pack
Rated 4.8 out of 5 stars based on 3093 reviews.
(3093)
Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart 2-pack
Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart 2-pack
Rated 4.8 out of 5 stars based on 2994 reviews.
(2994)
Kirkland Signature 0W-20 Full Synthetic Motor Oil 5-quart 4-pack
Kirkland Signature 0W-20 Full Synthetic Motor Oil 5-quart 4-pack
Rated 4.8 out of 5 stars based on 3093 reviews.
(3093)
Mobil 1 Advanced Full Synthetic Motor Oil 5W-20 1-Quart/6-pack
Mobil 1 Advanced Full Synthetic Motor Oil 5W-20 1-Quart/6-pack
Rated 4.8 out of 5 stars based on 1219 reviews.
(1219)
Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20 1-Quart/6-pack
Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20 1-Quart/6-pack
Rated 4.8 out of 5 stars based on 2343 reviews.
(2343)
Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30 1-Quart/6-pack
Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30 1-Quart/6-pack
Rated 4.8 out of 5 stars based on 550 reviews.
(550)
Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart 2-pack
Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart 2-pack
Rated 4.8 out of 5 stars based on 2687 reviews.
(2687)
Mobil 1 0W-40 Full Synthetic Motor Oil 1-Quart 6-pack
Mobil 1 0W-40 Full Synthetic Motor Oil 1-Quart 6-pack
Rated 4.8 out of 5 stars based on 1406 reviews.
(1406)
Mobil 1 Advanced Full Synthetic Motor Oil 5W-30 1-Quart/6-pack
Mobil 1 Advanced Full Synthetic Motor Oil 5W-30 1-Quart/6-pack
Rated 4.8 out of 5 stars based on 1884 reviews.
(1884)
Kirkland Signature 5W-30 Full Synthetic Motor Oil 1-Quart 12-pack
Kirkland Signature 5W-30 Full Synthetic Motor Oil 1-Quart 12-pack
Rated 4.8 out of 5 stars based on 686 reviews.
(686)
Mobil 1 High Mileage Full Synthetic Motor Oil 10W-30 1-Quart/6-pack
Mobil 1 High Mileage Full Synthetic Motor Oil 10W-30 1-Quart/6-pack
Rated 4.8 out of 5 stars based on 282 reviews.
(282)
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 1-Quart 6-Pack
Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 1-Quart 6-Pack
Rated 4.9 out of 5 stars based on 10 reviews.
(10)
Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart 4-pack
Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart 4-pack
Rated 4.8 out of 5 stars based on 2687 reviews.
(2687)
Kirkland Signature 5-Quart 0W20 & 5W30 Full Synthetic Motor Oil 4-pack
Kirkland Signature 5-Quart 0W20 & 5W30 Full Synthetic Motor Oil 4-pack
Rated 4.8 out of 5 stars based on 248 reviews.
(248)
Kirkland Signature 5-Quart 0W20 & 5W20 Full Synthetic Motor Oil 4-pack
Kirkland Signature 5-Quart 0W20 & 5W20 Full Synthetic Motor Oil 4-pack
Rated 4.7 out of 5 stars based on 175 reviews.
(175)
Mobil Full Synthetic Motor Oil 1-Quart/6-pack
Mobil Full Synthetic Motor Oil 1-Quart/6-pack
Rated 4.6 out of 5 stars based on 156 reviews.
(156)
Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil 1-Quart 6-Pack
Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil 1-Quart 6-Pack
Rated 5.0 out of 5 stars based on 2 reviews.
(2)
Kirkland Signature 5W-20 Full Synthetic Motor Oil 1-Quart 12-pack
Kirkland Signature 5W-20 Full Synthetic Motor Oil 1-Quart 12-pack
Rated 4.8 out of 5 stars based on 2687 reviews.
(2687)
Mobil 1 Advanced Full Synthetic Motor Oil 10W-30 1-Quart/6-pack
Mobil 1 Advanced Full Synthetic Motor Oil 10W-30 1-Quart/6-pack
Rated 4.8 out of 5 stars based on 691 reviews.
(691)
Kirkland Signature 0W-20 Full Synthetic Motor Oil 1-Quart 12-pack
Kirkland Signature 0W-20 Full Synthetic Motor Oil 1-Quart 12-pack
Rated 4.9 out of 5 stars based on 474 reviews.
(474)
Kirkland Signature 5-Quart 5W20 & 5W30 Full Synthetic Motor Oil 4-pack
Kirkland Signature 5-Quart 5W20 & 5W30 Full Synthetic Motor Oil 4-pack
Rated 4.8 out of 5 stars based on 180 reviews.
(180)
Kirkland Signature 1-Quart 0W20 & 5W30 Full Synthetic Motor Oil 12-pack
Kirkland Signature 1-Quart 0W20 & 5W30 Full Synthetic Motor Oil 12-pack
Rated 4.7 out of 5 stars based on 92 reviews.
(92)
Kirkland Signature 1-Quart 0W20 & 5W20 Full Synthetic Motor Oil 12-pack
Kirkland Signature 1-Quart 0W20 & 5W20 Full Synthetic Motor Oil 12-pack
Rated 4.7 out of 5 stars based on 91 reviews.
(91)

Top Rated Items

Kirkland Signature 0W-20 Full Synthetic Motor Oil 5-quart 2-pack
Kirkland Signature 0W-20 Full Synthetic Motor Oil 5-quart 4-pack
Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart 4-pack
Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart 2-pack

Shop Related Pages

Motor Oils for High Performance Engines
Motor Oils for Oil Change
5W30 Synthetic Motor Oils
Synthetic Oils for Hybrid Vehicles