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🚗 Keep your high-mileage engine running like new—longer, stronger, smarter.
Mobil 1 Extended Performance High Mileage 5W-30 full synthetic motor oil is designed for vehicles with over 75,000 miles, offering up to 20,000 miles between oil changes. Featuring Mobil 1’s advanced Triple Action+ Formula, it delivers superior engine protection against heat (up to 500°F) and cold (-40°F), reduces sludge buildup, prevents leaks, and improves fuel economy while meeting the latest ILSAC GF-6 standards. Trusted by mechanics and the Official Motor Oil of NASCAR®, it’s the premium choice for high-mileage engines seeking extended life and peak performance.



| ASIN | B0CXPX93J8 |
| Best Sellers Rank | #11 in Automotive ( See Top 100 in Automotive ) #3 in Motor Oils |
| Brand | Mobil |
| Brand Name | Mobil |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
| Customer Reviews | 4.9 out of 5 stars 3,652 Reviews |
| Item Type Name | Full Synthetic Motor Oil |
| Item Weight | 10.1 pounds |
| Liquid Volume | 320 fluid ounces |
| Manufacturer | Mobil 1 |
| Manufacturer Part Number | 123843 |
| Manufacturer Warranty Description | Limited Warranty - Please contact manufacturer for full details |
| Model Number | Extended Performance High Mileage |
| Package Information | Bottle |
| SAE J300 Viscosity Grade | 5W-30 |
| Size | 5 Quart (Pack of 2) |
| Unit Count | 320 Fluid Ounces |
| Vehicle Service Type | Car |
| Viscosity Level | Medium to High |
A**R
Great high mileage oil. Great price.
Love this oil, put it in my high mileage camaro with 207000 miles. The car runs like new. Great price.
A**E
Great
Great oil for the price
T**J
Great for high mileage engines
I have a 99 Ford Excursion V10 I purchased new. I have only used conventional oil in it since it was new. At 400,000 miles it was lacking its luster, performance wise, but still ran fine. My mechanic recommended using a full synthetic oil in it. I was hesitant at first but I finally pulled the trigger on it, using Mobil 1. After the first 50 miles I could feel the engine coming back to life. At 100 miles the engine was running like it did when it was brand new or even better! At times, I think the engine dies sitting at a stop light until I look at the tachometer and see it’s still running. It runs like a watch, I couldn’t believe the difference. My truck loves it!
D**B
just about the best oil there is. especially for the price
Just simply high quality great oil. great price can't go wrong
C**S
Super great stuff
My baby has close to 300000 miles and was acting rough now with this Mobil oil change it definitely running lot smoother I can see and feel the difference.
A**A
Good
I'll buy it again
D**D
Mobil 1 is one of the best
This is a great oil and the price is hard to beat, most of the time it's cheaper on amazon then anywhere else. I've never had and issues with leaking when it's shipped to me it's always packaged quite well. Hard to recommend buying it from anywhere else.
H**R
Great oil, change at 5K intervals, Fumoto Quick Valve, and other great oil changing tips!
This review is for this great oil and other tips. Instead of buying a separate quart, buy the 5 quart jug and pull out a quart. It is then half price for the extra quart. Instead of a drain plug, use the Fumoto Quick Oil Drain Valve. with a holder clip Takes 7 minutes to drain. Then you never have to take off your old drain plug and add a new drain plug washer!. Keep old oil drain bolt in trunk. Makes it much faster for oil changes too! I have it on all my Toyotas. I bought a see-through oil funnel that screws into the Toyota engine to prevent spills. You are an idiot if you go beyond 5, 000 miles per oil change interval. All my Toyotas go past 350K miles. I don't know the difference between the Extended Performance High Mileage and the High Mileage oils, so I use the Extended Performance High Mileage oil. I'm not sure I like the idea of removing the dipstick to help expedite oil drain flow. Too much chance of getting dirt on it needlessly. I do unscrew the oil cap. I blow out my air filter and check air in tires when I change my oil.
あ**い
希少な選択肢で満足度が高い
全合成油で海外から送られてきてこの価格なら大満足です。 日本国内ではハイマイレージで全合成油の選択肢は少ないので助かります。
J**O
Excelente producto
Éste producto es excelente
A**D
Mobile1 is number 1
Excellent quality
C**G
BUEN PRODUCTO
pense que seria clon , pero si es el original
Z**E
普通に良い
EA888搭載車に使用 純正初め 欧州ブランドは高すぎる ハイマイレージとはいっても余り引っ張ることはせず こまめに替えるならこの辺りのやつがコスパいい
Trustpilot
5 days ago
2 months ago