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Up to 66% Off Tire Clearance
Clearance pricing on select in-stock tires only. Prices will show as marked down with a strike through price. Discount eligible tires will be identified on product detail and search result pages. All other tires, fleet and special order tires are excluded from this offer.

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  • Part #: 122286|
  • SKU: 18634

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    • Maximum shear stability to help resist viscosity shear down in high performance engines and transmissions
    • Exceptional thermal stability to help resist oxidation and high-temperature degradation
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Mobil 1 Racing 4T 10W-40 Motorcycle Oil, 1-Quart

Mobil 1 Racing 4T 10W-40 is designed primarily for on-road, high-performance, 4-cycle sport bikes; however, it may be used in other types of on and off-road 4-cycle motorcycles especially where a 10W-40 viscosity grade is specified. Mobil 1 Racing 4T 10W-40 is recommended for 4-cycle motorcycles which specify the use a 10W-40 engine oil. This oil will help provide excellent performance in motorcycle engines that are designed with a common engine/transmission lubrication system or where the engine lubrication system is separate from the transmission system. In the case of the latter, follow the manufacturer's recommendation for the type of fluid to be used in the transmission. Mobil 1 Racing 4T 10W-40 engine oil is designed to help provide the proper frictional characteristics necessary for wet-clutch common engine/transmission systems. It has been fully tested, both on laboratory dynamometers and in the field, to help provide optimum horsepower and acceleration. The unique, synthetic structure of the Mobil 1 motorcycle oil formulations enables them to offer advantages beyond conventional motorcycle oils of similar viscosities. For example, base oils become lighter in viscosity as temperature increase. This characteristic forces manufacturers of oils to use thickeners which will help the oil maintain its viscosity as the temperature increases. These thickeners, however, can shear down and lose their thickening capacity in an operating engine or transmission. Synthetic fluids do not require as much thickener to achieve a multigrade viscosity rating and, in some cases, do not require any thickener. As a result, synthetic formulations tend to be very shear stable and thus, provide a solid, protective oil film for engine bearings, piston rings, transmission gears and other critical engine parts.
  • Maximum shear stability to help resist viscosity shear down in high performance engines and transmissions
  • Exceptional thermal stability to help resist oxidation and high-temperature degradation
  • Outstanding protection against wear of engine and transmission components
  • Enhanced lubrication to help maintain maximum power and acceleration over the life of the engine
  • Optimized wet-clutch performance
  • Excellent low temperature flow characteristics to help minimize engine wear during start-up
  • This synthetic motorcycle oil provides outstanding engine cleanliness and added lubricity for maximum horsepower
  • Check out our wide array of motorcycle maintenance products
  • The Pep Boys say: “Our wide selection of premium and well known motorcycle oil brands will not only get you to Point B, but keep your motorcycle running at its top performance.”


Rated 4.9 out of 5 by 11 reviewers.
Rated 5 out of 5 by Na I was using Repsol Racing Synthetic and all of a sudden the product was discontinued. The Mobile1 Racing 4T is an excellent alternative. If you can get it on discount through Pep Boys, you are doing even better. October 15, 2016
Rated 4 out of 5 by Good Stuff It's on the cheaper end of the synthetics and if you're changing the oil in your bike oil as often as you should it does the job. If you think you're going to go long on an oil change, consider spending more. No complaints or horror stories to report though. This one didn't hurt as much when I had to drain a fresh oil change due to a dead stator and rectifier. October 15, 2016
Rated 5 out of 5 by very good motorcycle oil This oil work really good with my 2008 Honda CBR 1000RR motorcycle, shift smooth, engine quiet and run smooth. October 7, 2016
Rated 5 out of 5 by best oil i ever used this oil keeps the motor cooler than any other oil we tried October 1, 2016
Rated 5 out of 5 by Best MC oil and price best product BEST price August 8, 2016
Rated 5 out of 5 by Great oil. I've been using Mobil 1 in my cars for years now with excellent results. Now using it in motorcycle, fantastic shifts and seems I will have excellent results with the 4T blend just as I have with automotive blends. Got a Great Deal on sale at Pep Boys! October 4, 2015
Rated 5 out of 5 by superior engine protection I can race my motorcycle with piece of mind when i use mobil 1 motor oil,i have had oil analysis performed on this oil with results far above the competition brands,so needless to say i use this oil every motor I own,It would be nice if my Pep Boys store would increase its inventory on this oil,sometimes i have to get the remaining oil i need at Wallmart.. June 8, 2015
Rated 5 out of 5 by Mobile Oil Everyone has their own favorites when it comes to motor oil but for me this is the ONE and ONLY motor oil for my ride. Little more $ than the run of the mill oil but it is well worth the cost. Whether you are astride a big cruiser or setting a sports bike this is the oil you really should take a look at. April 23, 2015
  • 2016-10-27 T11:42:39.809-05:00
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