Mobil 1™ Racing 4T 10W-40

Name: Mobil 1™ Racing 4T 10W-40
Brand: Mobil
SKU: 201515201070

Advanced Full Synthetic Motor Oil

Delivers racing performance four-cycle motorcycles

Mobil 1 Racing 4T advanced four-stroke motorcycle engine oil helps provide an outstanding level of performance in today’s high-performance motorcycles. It helps keep four-stroke engines running clean, providing protection even in extreme operating conditions.

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Product Data Sheets (PDS)
Safety Data Sheets (SDS)

Features and Benefits

Mobil 1 Racing 4T combines high performance synthetic basestocks and a precisely balanced component system to help provide excellent engine cleanliness, wear protection at high temperatures and protection from corrosion. Use of Mobil 1 Racing 4T helps to maintain optimum power output due to the inherently strong performance and protection provided by the synthetic technology. This specially engineered motorcycle engine oil helps to deliver optimized performance under some of the most severe conditions. Key features and potential benefits include:

Features	Advantages and Potential Benefits
Optimized frictional properties	Consistent power due to reduced frictional losses. Overall optimized balance of engine performance
Thermal and oxidation stability	Excellent flow characteristics under extreme hot operating conditions helping to minimize deposit formation especially at the high operating temperatures found in air-cooled engines
Low-temperature properties	Excellent lubrication at cold operating conditions helping to enable easy starting, rapid wear protection and less drain on starter systems
Excellent detergent/dispersant capability	Help to provide engine cleanliness, smooth and reliable operation
Effective protection from rust and corrosion	Long life of critical valve train and bearing components

Applications

Mobil 1 Racing 4T is specifically recommended by ExxonMobil for lubrication of four-stroke motorcycle engines in high performance motorcycles

Specifications and Approvals

This product meets or exceeds the requirements of:
API SN
JASO MA2
JASO MA

Properties and Specifications

Property
Grade	SAE 10W-40
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445	13.4
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445	85.9
Viscosity Index, ASTM D2270	159
Density @ 15 C, g/ml, ASTM D1298	0.849
Flash Point, Pensky-Martens Closed Cup, °C, ASTM D93	204
Pour Point, °C, ASTM D97	-48

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx

FAQs

What does Mobil 1 Racing™ 4T 10W-40 offer that Mobil 1™ for cars does not?

Mobil 1 Racing™ 4T 10W‐40 is designed for sport bikes. Most of these bikes have multi-cylinder/multivalve engines and use a common sump, which means the engine oil lubricates the engine, transmission and wet clutch. So unlike Mobil 1 for cars, Mobil 1 Racing 4T 10W‐40 motor oil has no friction modifiers, which could lead to clutch slippage. The motorcycle oil also has more phosphorus/zinc for enhanced wear protection at high engine speeds and high loads. In addition, Mobil 1 Racing 4T 10W‐40 has a high performance dispersant/detergent technology for better high‐temperature performance and engine cleanliness. Mobil 1 Racing 4T 10W‐40 is also offered in a different viscosity grade than Mobil 1 for passenger cars.

What are the overall advantages of Mobil 1™ motorcycle oils?

In addition to the overall benefits of high‐temperature stability and low volatility/low oil consumption, Mobil 1 synthetic motorcycle oils also offer superior anti‐corrosion performance compared to conventional motor oil, which is important in many parts of the country where bikes may sit in garages for several months of the year. Compared to conventional oils, Mobil 1 motorcycle oils provide superior wear and high‐temperature protection, and promote engine cleanliness and lower oil consumption. Once you get beyond these general advantages, you have to consider individual motorcycle oils to understand the benefits of each.

So how are Mobil 1 oils for motorcycles different from Mobil 1™ synthetic motor oil for passenger cars?

It's a little hard to generalize about the difference between Mobil 1 passenger‐car motor oils and Mobil 1™ motorcycle oils. That's because not all viscosities of Mobil 1 passenger‐car oils have the same levels of zinc and phosphorus, and there are even greater differences between the two Mobil 1 motorcycle oils.

In general, Mobil 1 motorcycle oils have additive packages formulated for use in both motorcycle engine and transmission operation.
For passenger vehicles, fuel economy and emission system protection are higher priorities. These require low phosphorus systems and the use of friction modifiers.
Motorcycle oils do not require friction modifiers for fuel economy and for better clutch friction less/no friction modifier is optimum.
Motorcycle oils allow the use of higher levels of anti‐wear additives such as ZDDP (phosphorous).

Plus there are the overall benefits of Mobil 1 synthetic oil compared to those of conventional motor oils, whether they be for passenger cars or motorcycles:

Superior long‐term engine protection
Superior high‐temperature stability
Excellent low‐temperature starting
Outstanding engine performance
Low volatility/low oil consumption

See all FAQs

Rated 5 out of 5 by John A. from Mobil1 Racing 4T Better than expected in honda atv Put it in an '09 Honda 420 Rancher. Oil protects as it should. No ticks and the engine sounds better. Best part was how responsive the transmission/clutch was to the throttle. It was immediate. No lag or hesitation. You bump the throttle and it just launches. It sure is better than the other oil I had been using. I'll be switching to this from now on. I'm sold. I'd also like to thank Cary at the helpdesk for their responses.

Date published: 2026-05-22

Rated 5 out of 5 by Beemer Madness from R1250 GS Bike shifts noticably smoother I installed this at 6500 miles on my BMW R1250 RT. The bike immediately shifted much smoother than whatever the BMW dealership had in there from 1400 miles. Now with 12500 miles on the bike, I used this again for my 4 1/4 qt (4 liter). The bike has shifted consistently smooth the whole oil change interval. I had zero oil usage or need for any makeup oil during the 6000 miles between oil changes. I've since put it also in my Bmw R1250 GS model too. The previous oil in the GS was Castrol Power 1, and the bike missed quite a few shifts between 3-4, 4-5 and 5-6 while accelerating and using the clutch. It missed much less shifts using the quickshifter feature, but the gear box did tend to clunk much more frequently on Castrol Power 15w-40. I do believe the Mobil 1 has less volatility, and more PAO based Group IV motor oil for oil base, and possibly the additive packages is better or longer lasting. BWM R1250 models are known to have rather clunky agricultural feel to shifts on their gear boxes. Anything that helps keeping them shifting smoother and with less clunking is the oil I am going to run. I believe this oil has no problem in my boxer motors and gearbox staying in viscosity grade for the whole oil service life, the gearbox is not shearing the oil down in any significant way.

Date published: 2026-04-25

Rated 5 out of 5 by Natedog from Worth every penny. I got a 2005 kawasaki bayou 250 that I revived from the dead. I ran the cheapest oil I could in it, and as such, got that cheap kind of performance. I did a change to this racing oil, and I will never go back. It had an instant performance increase. Shifting was smoother, the engine ran quieter and noticeably smoother. It also has stayed incredibly clean and clear. You wouldn't knowingly hurt your precious machine, so run this stuff. I promise you it's worth it. Mobil 1 for life.

Date published: 2025-08-13

Rated 5 out of 5 by FastFreddie from High revving, high HP engines demand the best! I've used Mobil 1 Racing 4T 10W-40 in my '07 Hayabusa since day 1. It shifts smooth, revs quickly, and performs like it's brand new. That 2002 S-10 in the background has run Mobil 1 full synthetic for the last 235k miles, and it also runs excellent. When my mechanic replaced the valve cover gaskets on the truck at 165K miles, he said, "You have a good engine there!". He said when he removed the valve covers, everything was clean and shiny. Mobil 1 is good stuff!

Date published: 2025-06-24

Rated 5 out of 5 by HECTOR luus from Motorcycle Suzuki Bulevar C90 I love this product for my motorcycle it works great and shift very smooth I love it

Date published: 2025-01-22

Rated 5 out of 5 by Tommy 72 from XR650L Is Happy I bought my XR from the Honda dealer pre owned. They changed the oil with 10w30 Honda conventional oil. After a day of riding I noticed second gear was rough and neutral was hard to find. I knew what I needed to do and that was to change the oil with quality. In my Harley Davidson I use the Mobile 1 V Twin 20w50 and keeps the Harley nice and cool. Changed the oil with 4T and instantly noticed the difference. Shifting at normal operating temperature was smooth as glass. The bike ran cooler by 20*. It was a different bike. Im a certified technician and been using Mobile 1 in all my vehicles. You will get superior protection from Mobile 1 and you will notice it. I highly recommend Mobile 1 Racing 4T 10w40 in your XR650L. Your XR will thank you for it.

Date published: 2024-01-01

Rated 5 out of 5 by Bumblef28k from Clean race engines! Running this oil in my gsxr1000 powered racecar. Keeps engine builder happy. Only question is what's the difference between the red label and black label?

Date published: 2023-11-03

Rated 5 out of 5 by Lava Creel Bridger from Immediate Improvement in Performance Switched from another major brand full synthetic To Mobil 1 in my Triumph Tiger 1200. There was an immediate improvement in smoothness, power, and overall performance.

Date published: 2023-10-01