Mobil 1™

Mobil 1™ FS 0W-40 is rated 4.8 out of 5 by 91.

Keeps your engine running like new

Mobil 1 advanced full synthetic motor oils deliver exceptional performance and protection for vehicles of all ages and for all driving conditions – normal to extreme.

Mobil 1 oils keep engines running like new by helping:

Combat sludge and deposit buildup
Reduce wear
Control oil breakdown

Mobil 1 motor oils offer a full range of temperature protection: For cold starts, the oil keeps flowing as low as -40 degrees Fahrenheit, and it can withstand high temperatures of up to 500 degrees Fahrenheit.

In fact, Mobil 1 is the World’s Leading Synthetic motor oil brand, recommended by more car builders and used by more NASCAR^® teams than any other brand of motor oil. What’s more, Mobil 1 oils meet or exceed the toughest standards of Japanese, European and U.S. car builders.

Please reference our Mobil 1™ Product Guide for a quick look at specifications including zinc and phosphorus, as well as manufacturer approvals for Mobil 1 motor oils.

We stand behind our products. Read our Mobil 1 limited warranty.

More product information

Product data sheet [PDS] • Safety data sheet [SDS] • Limited warranty • FAQs

Features and benefits

Advanced full synthetic formula

Helps prevent deposits and sludge buildup to enable long engine life
Provides overall lubrication and wear protection performance for many driving styles

Outstanding thermal and oxidation stability

Delivers outstanding performance during the maximum oil change interval recommended in a vehicle’s owner’s manual. Read our guarantee.
Offers superb viscosity control

Excellent low-temperature capabilities

Support quick cold-weather starting and ultra-fast protection
Help extend engine life and reduce stress on starting system components

Available viscosity grades

What does this viscosity mean?

FS 0W-40

Specifications and approvals

Mobil 1 FS 0W-40 synthetic motor oil meets or exceeds the requirements of:

API SN, SM, SL, SJ
ACEA A3/B3, A3/B4
FIAT 9.55535-M2

Mobil 1 FS 0W-40 has the following builder approvals:

AVTOVAZ Group
MB-Approval 229.3
MB-Approval 229.5
VW 502 00/505 00
PORSCHE A40
Nissan Genuine Performances

According to ExxonMobil, Mobil 1 FS 0W-40 is of the following quality:

API CF
VW 503 01
FIAT 9.55535-M2

Technical details

Viscosity, cSt (ASTM D445)
@ 40ºC	70.8
@ 100ºC	12.9
Viscosity Index	186
MRV at -40ºC, cP (ASTM D4684)	21,600
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)	3.6
Total Base Number (ASTM D2896)	12.6
Sulfated Ash, wt% (ASTM D874)	1.34
Phosphorous, wt% (ASTM D4981)	0.1
Flash Point, ºC (ASTM D92)	226
Density @ 15.6ºC, g/ml (ASTM D4052)	0.8456

View product data sheet for Mobil 1 FS 0W-40
This is a replacement to product Mobil 1 0W-40

Which oil for my vehicle?

5W-20

Specifications and approvals

Mobil 1 5W-20 synthetic motor oil meets or exceeds the requirements of:

API SN, SM, SL, SJ
ILSAC GF-5
Ford WSS-M2C945-A

Mobil 1 5W-20 has the following builder approvals:

General Motors Service Fill dexos1™ Gen 2 (license number D10103GH015)

According to ExxonMobil, Mobil 1 5W-20 is of the following quality level:

Ford WSS-M2C930-A
General Motors GM 6094M
API CF

Technical details

SAE Grade	5W-20
Viscosity @ 100ºC, cSt (ASTM D445)	8.9
Viscosity, @ 40ºC, cSt (ASTM D445)	49.8
Viscosity Index	160
Sulfated Ash, wt%, (ASTM D874)	0.85
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)	2.75
Pour Point, ºC (ASTM D97)	-43
Flash Point, ºC (ASTM D92)	230
Density @15º C g/ml, (ASTM D4052)	0.852

View product data sheet for Mobil 1™ 5W-20

Which oil for my vehicle?

5W-30

Specifications and approvals

Mobil 1 5W-30 synthetic motor oil meets or exceeds the requirements of:

ACEA A1/B1, A5/B5
API SN, SM, SL, SJ
ILSAC GF-5
Ford WSS-M2C946-A

Mobil 1 5W-30 has the following builder approvals:

General Motors Service Fill dexos1™ Gen 2 (license number D10104GH015)
Honda/Acura HTO-06

Mobil 1 5W-30 is recommended by ExxonMobil for use in applications requiring:

General Motors 4718M
General Motors 6094M

Technical details

SAE Grade	5W-30
Viscosity @ 100ºC, cSt (ASTM D445)	11.0
Viscosity, @ 40ºC, cSt (ASTM D445)	61.7
Viscosity Index	172
Sulfated Ash, wt%, (ASTM D874)	0.8
Phosphorous, wt% (ASTM D4981)	0.08
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)	3.1
Pour Point, ºC (ASTM D97)	-42
Flash Point, ºC (ASTM D92)	230
Density @15º C g/ml, (ASTM D4052)	0.855

View product data sheet for Mobil 1™ 5W-30

Which oil for my vehicle?

10W-30

Specifications and approvals

Mobil 1 10W-30 synthetic motor oil meets or exceeds the requirements of:

ACEA A1/B1, A5/B5
API SN, SM, SL, SJ
ILSAC GF-5

According to ExxonMobil, Mobil 1 10W-30 is of the following quality level:

General Motors GM 4718M
General Motors GM 6094M
API CF

Technical details

SAE grade	10W-30
Viscosity @ 100ºC, cSt (ASTM D445)	10.1
Viscosity, @ 40ºC, cSt (ASTM D445)	63.2
Viscosity index	146
Sulfated ash, wt%, (ASTM D874)	0.8
HTHS viscosity, mPa•s @ 150ºC (ASTM D4683)	3.0
Pour Point, ºC (ASTM D97)	-42
Flash Point, ºC (ASTM D92)	232
Density @15º C g/ml, (ASTM D4052)	0.859

View product data sheet for Mobil 1™ 10W-30

Which oil for my vehicle?

FS X2 5W-50

Specifications and approvals

Mobil 1 FS X2 5W-50 synthetic motor oil meets or exceeds the requirements of:

API SN, SM, SL, SJ
ACEA A3/B3, A3/B4

Mobil 1 FS X2 5W-50 has the following builder approvals:

PORSCHE A40
MB-Approval 229.3
MB-Approval 229.1

According to ExxonMobil, Mobil 1 FS X2 5W-50 is of the following quality level:

API CF

Technical details

Viscosity, cSt ASTM D445
@ 40ºC	104.3
@ 100ºC	17.1
Viscosity Index	179
Sulfated Ash, wt% (ASTM D874)	1.34
Phosphorous, wt% (ASTM D4951)	0.1
Flash Point, ºC (ASTM D92)	232
Pour point, ºC	-42
Density @ 15.6 ºC g/ml, (ASTM D4052)	0.8499
Total Base Number (ASTM D2896)	12.6
MRV at -35ºC, cP (ASTM D4684)	24,800
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)	4.4

View product data sheet for Mobil 1™ FS X2 5W-50
This is a replacement to product Mobil 1 5W-50

Which oil for my vehicle?

15W-50

Specifications and approvals

Mobil 1 15W-50 synthetic motor oil meets or exceeds the requirements of:

API SN, SM, SL, SJ
ACEA A3/B3

According to ExxonMobil, Mobil 1 15W-50 is of the following quality level:

API CF

Technical details

SAE Grade	15W-50
Viscosity @ 100ºC, cSt (ASTM D445)	18
Viscosity, @ 40ºC, cSt (ASTM D445)	125
Viscosity Index	160
Sulfated Ash, wt% (ASTM D874)	1.21
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683)	4.5
Pour Point, ºC (ASTM D97)	-39
Flash Point, ºC (ASTM D92)	232
Density @15.6º C g/ml ASTM D4052)	0.87

View product data sheet for Mobil 1™ 15W-50

Which oil for my vehicle?

Show reviews

Rated 5 out of 5 by Nat34 from Great cleaning ability I just started using this oil, and it's working great! According to the PDS, it "Provides exceptional cleaning power for dirty engines". This is proving to be true, I have been looking down the oil fill cap with a flashlight since I started using this oil, and what I can see of the valve train is becoming cleaner. The other oil brands prior to Mobil left the metal with a layer of yellowish/orange varnish. The Mobil 0W-40 is cleaning the metal and it is turning the silvery and shiny color of new metal! Particularly on the shaft behind the gears of the DOHC. Overall, the engine is really smooth, really pleased with this oil! Keep up the great work!

Date published: 2016-09-29

Rated 5 out of 5 by Jim1967 from I use Mobil 1......Period....And Here's Why... I've had my 1998 Ford F150 with a 4.6L SOHC V-8 since new. I run only Mobil 1 5w30. Drove it 266,000 miles until it blew a head gasket. Where we tore it apart - absolutely NO WEAR - ZERO. Clean inside and no wear. Cylinder walls still had a crosshatch pattern. Crank and cam journals were void of wear and we went back with standard sized bearings. I can provide images of this engine when it was torn down. Mobil 1 for life.....FOR LIFE. Engine is now rebuilt and ready to go back in my truck. Had I taken better care of my cooling system it would never have blown the head gasket. It would have gone way beyond 300,000 miles WITHOUT A REBUILD on Mobil 1.

Date published: 2016-05-15

Rated 5 out of 5 by Q1956 from If you drive Suburban/Tahoe use it If you own a Suburban or Tahoe use Mobil 1 5W-30 solely and your engine can go over 300,000 miles. Now driving my 12th Suburban and the last 3 used only Mobil 1 and the first 2 went 340,000 and 350,000 miles respectively and the engines still ran like new! Have 125,000 on current Suburban and still does not burn any oil between changes - 7500 miles and the technician smiles because the old oil looks as clean as the new oil! - and runs as smooth as the day I drove it off the show room floor. Every GM dealer carries Mobil 1, use it and you will be amazed at the result.

Date published: 2015-09-06