My car has 120k miles on it. I am considering what to use, High Mileage or Extended Performance? Any recommendation? Thx.

Not sure that I can see any difference. If your car has 120K+ miles on it, I would use either. Just change the oil about every 7500 miles or so.

Price. mobil 1 high mileage full synthetic motor oil 5w-30, 6-pack of 1 quarts $53.98, while 5 quart is $27.47. i don't understand.

That's an Amazon question, not a Gregory question...

Is this safe to use in a Generator?

Provided you are using the correct viscosity for your region, I don't see why there would be an issue. I use the Extended Performance in generators and other long length between oil change engines.

How does the performance of this high mileage oil differ from other high mileage oils in your opinion? Other than it being fully synthetic. Thanks.

Have to go on expert reviews over the years that place M1 higher than most other synthetic oils. There are some racing oils that usually get rated a tad higher, but they cost 2/3 times more and are marketed primarily for racing and car nuts. M1 gives me the best value.... a great product at the best price, and for typical owner use it would be hard to beat that combo. Also, it is easily available everywhere oil is sold.

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Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30, 6-pack of 1 quarts

Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30, 6-pack of 1 quarts

Product ID: 3583069

Details

Brand
Mobil
Liquid Volume
6 quarts
Package Information
Bottle
SAE J300 Viscosity Grade
5W-30
Vehicle Service Type
Car Truck

⛽Up to 10,000 miles per oil change

🔥Protects engine up to 500°F

❄️Operates down to -30°F

$260.39

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Description

🚗 Keep your high-mileage engine running like new—because your ride deserves the best!

TRIPLE ACTION FORMULA - Experience superior engine cleanliness, wear protection, and performance with Mobil 1’s signature advanced formula.
HIGH MILEAGE ENGINE CARE - Specifically engineered for engines over 75,000 miles to reduce friction, prevent sludge buildup, and extend engine life.
LONG LASTING PERFORMANCE - Drive worry-free with up to 10,000 miles between oil changes—maximize your engine’s uptime and minimize maintenance hassle.
EXTREME TEMPERATURE DEFENSE - From freezing cold starts at -30°F to scorching engine heat up to 500°F, keep your engine protected in every climate.
TRUSTED BY EXPERTS ENTHUSIASTS - Official Motor Oil of NASCAR® and recommended by mechanics—join the elite who demand the best for their ride.

Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30 is a premium motor oil designed for vehicles with over 75,000 miles. It offers up to 10,000 miles between oil changes, protects engines from extreme temperatures (-30°F to 500°F), and uses a Triple Action Formula to maintain engine cleanliness, reduce wear, and improve fuel economy. Trusted by professionals and NASCAR®, it extends engine life by preventing sludge and deposits, making it the go-to choice for high-mileage cars, trucks, and SUVs.

Specifications

ASIN	B00BLKXTDS
Automotive Fit Type	Universal Fit
Best Sellers Rank	#782,951 in Automotive ( See Top 100 in Automotive ) #2,288 in Motor Oils
Brand Name	Mobil
Compatible with Vehicle Type	Car, Truck
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (561)
Global Trade Identification Number	00071924450004, 00071924900103
Item Highlight	75K+ Mile Protection \| Seal Conditioner \| Sludge Prevention
Item Type Name	HM Full Synthetic Motor Oil
Item Weight	2 pounds
Liquid Volume	6 quarts
Manufacturer	Mobil 1
Manufacturer Part Number	103767
Manufacturer Warranty Description	Limited Warranty - Please contact manufacturer for full details
Model Number	HM Full Synthetic Motor Oil
Number of Packs	6
SAE J300 Viscosity Grade	5W-30
Size	1 Quart (Pack of 6)
UPC	071924450004 071924900103
Unit Count	192 Fluid Ounces
Viscosity Level	Medium

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