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| ACEA Specification: | A1/B1,A5/B5 |
| API Service Category: | SJ |
| ATV: | No |
| Container Size: | 1 qt |
| Container Type: | Bottle |
| Conventional: | No |
| Detergent or Non-Detergent: | Detergent |
| Diesel Approved: | No |
| High Mileage: | No |
| Motorcycle: | No |
| Race Only: | No |
| Synthetic Blend: | No |
| Synthetic: | Yes |
| Viscosity Index: | 5W30 |
REVIEW SNAPSHOT®
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REVIEWS
Reviewed by 25 customers
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Pros
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Best Uses
Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
Very nice. Put this is a freshly rebuilt engine after taking out the break in oil. Had a 2 Miles per gallon increase. Very impressed. Also feels like a slight increase in horsepower.
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
The only oil I have used since I started doing my own maintenance 8 years ago. When your car is a necessity for getting to and from everywhere maintain it with the best. The extended interval is great too. It's garunteed for 15,000 miles but i usually change it every 10,000.
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
In the us oil manufacturers can say a oil is full synthedic even when it's not just like Mobil one they used to be but they lost one of there contracts with Castrol but it is synthedic they start off with crude base stocks and then make it synthedic unlike royal purple am soil and red line that are made in a lab and start off as synthetics there is not Mitch difference except the real full synthedic oils don't break down as quickly as the fake full synthedic oils cough cough Mobil 1 but I'm done upswing Mobil 1 a dolor more you can get real full synthedic oil like royal purple
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
Great oil for use in engines
Pros
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
The first thing I noticed was the car and truck ran a wee bit cooler and the gas mileage went from 20.9 to 21.2 miles per gallon in the car,a 2010 Chevy Impala thats not to shabby.
Pros
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
Great Stuff
Pros
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
Used it for five years now.. I am not going back to any other.. Just wait til Advance Auto has it on sale....
Pros
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
I bought a 97 Honda accord with 113,000 miles and the top end had been rebuilt. I decided to try synthetic. This product works great. Increased gas mileage by 3%.
Pros
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
i have used this oil....and i have to tell you...i may be nuts but i can tell a difference every time i change oil,,,,i am 56...never felt this before...maybe in my head....but it is good stuff
Pros
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Comments about Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.):
Advance should allow the store to price match to the on line prices, especially if you provide the free shipping for the purchase value exceeding x.xx dollars. In my case Advance could not ship the product (EPA, DOT, etc. regs.) but i could pick up at the store with the order already picked. It seems that taking up the employee's time to pick my order costs Advanced more that allowing the store to match the on-line prices. I got the filters in the store at the same price but had to return home , place an on-line order and then return to the store in order to get the on-line price savings ( which were a very good savings).
Do you have questions about this product?(earn points for answers!)
Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.
Q:
does it fit my cadillac CTS 20041 answer
CUSTOMER CARE
A:
This Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.) part# 98HC54 should work fine on your 2004 Cadillac CTS, since it is recommended for all types of modern vehicles, including high-performance turbo-charged, supercharged gasoline multi-valve fuel injected engines found in passenger cars, SUVs, light vans and trucks. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.Q:
IS This The BEST OIL FOR MY 1997 FORD F150 4.6 W1 answer
CUSTOMER CARE
A:
This Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.) - part# 98HC54 is fully compatible with engine seals and conventional motor oils and it satisfies API SM, API SL/CF, ACEA A1/B1, ACEA A5/B5 and ILSAC GF-4 service requirements. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.Q:
I have a 2000 Toyota Celica GT with around 110,000 miles on it. The engine burns oil probably about a quart every month, due to bad piston rings (a known issue with these engines) but the engine runs great and strong. Do you think the MOBILE 1 EP synthetic oil would improve this situation? Would you recommend another MOBIL product for this problem?1 answer
CUSTOMER CARE
A:
This Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.) (Part No. 98HC54) is an exact fit for your 2000 Toyota Celica GT. Mobil 1 Extended Performance 5W-30 synthetic oil is made with a proprietary blend of high-performance synthetic base stocks and fortified with a precisely balanced additive component system. Mobil 1 Extended Performance 5W-30 is designed for today’s longer service intervals – guaranteed to protect for up to 15,000 miles between oil changes*. It is recommended by ExxonMobil for use in many vehicles manufactured by Honda, Toyota, Ford, and Chrysler. Please follow the recommendations in your owner's manual while your car is under warranty. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.Q:
Do you recommend this oil for a 2007 Mazda MX5 and what is the time to change the oil?1 answer
CUSTOMER CARE
A:
This Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.) (Part No. 98HC54) satisfies API SM, API SL/CF, ACEA A1/B1, ACEA A5/B5 and ILSAC GF-4 service requirements; exceeds warranty requirements for gasoline and turbocharged engines in GM 6094M, Chrysler MS-6395 and Ford WSS-M2C929-A applications. For more information, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our technicians would be more than happy to assist you.Q:
When I search on DEXOS it returns 0 matches. This oil should be found, How come it isn't?1 answer
CUSTOMER CARE
A:
Sorry for any convenience caused. The keyword "dexos" is not used in any of the mobil1 synthetic motor oil products. However this Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.) (Part No. 98HC54) has the builder approval of General Motors dexos1™. For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.Q:
2002 mercedes c320 how many qts oil with new filter1 answer
CUSTOMER CARE
A:
The 2002 Mercedes-Benz C320 would need 7.5 quarts of oil when replacing the filter. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.Q:
I have a 2003 Forrester 2.5XS (71K miles). In my latest service from Subaru they said I have a head-gasket leak. Nothing major, but to keep an eye on oil level. I've been using Mobil 1 for the past 2 years. Is there anything I can add that will help seal this leak? Thanks, P Malloy.1 answer
CUSTOMER CARE
A:
Bars Leak Head Gasket Fix - part# 1111 should work fine for your application as it combines antifreeze-compatible sodium silicate sealing liquid and various-size gasket-sealing particles to stop head gasket coolant leaks without draining the cooling system. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.Q:
does this oil meet the gm Dexos1 oil criteria for 2011 chevys2 answers
A:
if it has the Dexos 1 designation that is the latest spec for GM gasoline engines worldwide.CUSTOMER CARE
A:
This Mobil1 Extended Performance 5W-30 Synthetic Motor Oil (1 qt.) with part# 98HC54 is fully compatible with engine seals and conventional motor oils and it satisfies API SM, API SL/CF, ACEA A1/B1, ACEA A5/B5 and ILSAC GF-4 service requirements.Q:
is this a proper oil for a honda v-tech engine 18,000 miles 2004 or can you recomd one that is1 answer
CUSTOMER CARE
A:
Yes, this oil is compatible for Honda v-tech engine.Q:
I have a Toyota Sienna which recommends an oil change every 6 mo/5k miles. If I switch to a synthetic such as this one, would it be reasonable to change it less often (maybe double the aforementioned numbers)? What's the conventional wisdom on that?1 answer
CUSTOMER CARE
A:
Mobil 1 Extended Performance oils provide guaranteed protection of critical engine parts for 15,000 miles or one year, whichever comes first.