Oil with a high viscosity might seal better and provide a better lubricating film, but if it is not able to get into the small spaces in an engine – it will not offer full protection. The brand range now includes a variety of engine oils, oil filters, chassis grease, transmission fluids, and gear lubricants. • Mobil 1 5W-30 is a high-performance motor oil for all types of cars where this viscosity is recommended. Hardworking trucks need hardworking engine protection. Designed to help provide exceptional cleaning power, wear protection and overall performance.
Based on results, Amsoil once again prevailed in this test. This test is straightforward and does not require a chemist to be performed. The MPG values your vehicle gets is an exact formula of energy used, made possible by the engine’s efficiency to overcome resistance. A high-quality oil helps internal components encounter less resistance, resulting in greater MPG. The test is best conducted using two different vehicles with similar engines.
If this is not doable, make sure to test Castrol GTXs first and Amsoil oils last. The reason behind this is that Amsoil variants contain protective qualities that may leave residue inside the motor, causing other test results to be skewed. Between the two brands, Amsoil motor oils are thinner and perform more like winter-grade oils, while Mobil 1 variants share the same characteristics as summer-grade oils and have better film strength. Depending on where you live, you may have to choose one over the other. Heck, you may even need to change viscosity grades in-between seasons (or switch oils in the absence of your go-to brand).
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com Castrol GTX is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page. Are 100% man-made Syn-Sols and NO petroleum is used in the production.
Designed using state-of-the-art technology and with customers in mind…. SAE 10W-30 Advanced Full Synthetic Motor Oil by Mobil 1®. SAE 0W-40 Advanced Full Synthetic Motor Oil by Mobil 1®. High Mileage SAE 5W-30 Full Synthetic Motor Oil by Mobil 1®. High Mileage SAE 5W-20 Synthetic Motor Oil by Mobil 1®. High Mileage SAE 10W-40 Full Synthetic Motor Oil by Mobil 1®.
From every 3,000 miles, most car manufacturers now recommend oil changes to happen every 5,000 to 7,500 miles. Certain vehicles permit prolonged, even annual oil changes. Have you noticed your engine Castrol GTX running louder than usual? Do you remember the last time you changed the oil in your vehicle? Depending on how you answered these questions, it’s probably time you stopped in for an oil change.
Lubes N’ Greases magazine has reported shortcomings in the ability to pass the tests that the original Mobil 1 formula was able to. More and more hybrids are hitting the road these days. Learn how Mobil 1™ motor oil protects their fuel-efficient designs. Our offer includes the Mobil 1™ brand, and a wide variety product options in synthetic and synthetic blend formulations. Browse our product lineup by brand, or by vehicle or engine type. Or get help with narrowing down the choices using our product selector.