How often do I need to change the oil with this?

Mobil rates it for up to 25,000 miles between changes. Follow your owner's manual and oil life monitor, and shorten the interval for severe duty such as towing or heavy stop-and-go.

Is this the right oil for my car?

It is a 5W-30 full synthetic for gasoline cars of all ages. Check your owner's manual for the required viscosity and specification before buying.

Can I use it in a diesel?

No. It is not diesel compatible. Use a diesel-rated oil for diesel engines.

Does it work in very cold or very hot weather?

Owners report it holds up across temperature extremes. A 5W-30 grade flows in cold starts and keeps viscosity at operating temperature.

How does it differ from regular Mobil 1?

Extended Performance is rated for longer drain intervals and adds stronger oxidation control. Standard Mobil 1 is aimed at more frequent changes.

One 5-quart jug of 5W-30 full synthetic oil, enough for most four-cylinder and V6 cars in a single change.

Where is the Mobil 1 Extended Performance Motor Oil cheapest?

At Walmart, for $35.97, 20% under what the other stores charge, as of our latest check.

What do buyers say about the Mobil 1 Extended Performance Motor Oil?

Buyers like: Walmart consistently sells Mobil 1 cheaper than other retailers; Improves engine smoothness and extends service intervals; Preserves wear resistance across extreme temperatures and high mileage. Common complaints: Some reviewers doubt brand makes a real difference versus store brands.

Where can I buy the Mobil 1 Extended Performance Motor Oil?

6 stores we checked sell it, including Walmart, Tractor Supply Company, AutoZone, eBay, A-1 Racing Products.

Mobil 1 Extended Performance Motor Oil

Best price now

$35.97at WalmartChecked Nov 1

20% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners say the engine runs smoother and quieter than with oil from quick-change shops, and that it holds up across temperature extremes and high mileage. A few doubt any brand makes a measurable difference over store-brand synthetics.

What people mention

Engine smoothnessPraisedOwners report the engine runs smoother and quieter after switching.
Wear protectionPraisedReviewers say it holds up in extreme temperatures and on high-mileage engines.
Service intervalPraisedBuyers value the long drain interval it is rated for.
CleaningPraisedOwners say it reduces friction and clears deposits.
Brand valueCriticisedSome reviewers doubt the brand makes a real difference versus store brands.

About the Mobil 1 Extended Performance Motor Oil

Mobil 1 Extended Performance is a full synthetic 5W-30 motor oil for 4-cycle car engines. It is made for vehicles of all ages. Specialty synthetic components reduce deposits and sludge buildup, and the oil cleans your engine in just one oil change.

The oil protects for up to 25,000 miles between oil changes. It meets ILSAC GF-7 standards with superior oxidation control. It helps improve gas mileage and exceeds GF-7 fuel economy requirements.

This oil is not a high mileage formula and is not compatible with diesel fuel.

Viscosity

5W-30

Type

Full synthetic

Volume

5 qt (160 fl oz)

Engine type

4-cycle

Vehicle type

Car

Standard